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Articles 3991 - 4020 of 4221

Full-Text Articles in Life Sciences

The Effect Of A Varying Moisture Supply At Different Periods Of Growth On The Development, Yield And Quality Of Flax, William K. Soule Jan 1931

The Effect Of A Varying Moisture Supply At Different Periods Of Growth On The Development, Yield And Quality Of Flax, William K. Soule

Electronic Theses and Dissertations

In the flaxseed producing section of the United States consisting of the states of North Dakota, South Dakota, and Minnesota and Montana, periods of drought frequently occur during some part of the growing season. The time of occurrence varies from early spring to fall. Such periods have a profound effect on the normal growth of the plant.


Greenhouse Studies On The Relationship Of Age Of Wheat Plants To Infection By Puccinia Graminis Tritici, George W. Eade Jan 1931

Greenhouse Studies On The Relationship Of Age Of Wheat Plants To Infection By Puccinia Graminis Tritici, George W. Eade

Electronic Theses and Dissertations

The resistance of wheat to the stem-rust organism (Puccinia graminis tritei) has been under investigation for a number of years. Although rust resistance has been investigated from various angles, there still remains a question as to the nature of resistance, the time when resistance first appears in plants and whether or not it is of a stable character. Peltier found that environmental conditions could change the degree and type of stem rust infection on wheat plants; Miss Hart proved that stomatal behavior was very important in the rust resistance, and Harrington and Aamodt studied the inheritance of rust resistance and …


North And South Dakota Horticulture, December 1930, North And South Dakota State Horticultural Societies Dec 1930

North And South Dakota Horticulture, December 1930, North And South Dakota State Horticultural Societies

North and South Dakota Horticulture

Volume 2, Number 12

Winter Gardening, Mrs. M.W. Sheafe, Watertown
Drouth Resistant Shrubs and Plants, George Will, Bismark
Garden Notes, F.X. Wallner, Sioux Falls
Extracts from the Diary of a Traveling Man, W.A. Simmons, Sioux Falls
Columbine of Aquilegia, Mrs. Catherine Talty, Watertown
Watering Lawns on Hot Days, Thomas Hobart, Sioux Falls
Horticultural Notes, Oliver Strand, Fargo
North Dakota Beekeepers' Assocation, Notes, J.A. Munro, Fargo
The House Wren, O.A. Stevens, Fargo
North Dakota State Horticultural Society News Letter of November, 1930, C.B. Waldron, Fargo
South Dakota Notes


North And South Dakota Horticulture, November 1930, North And South Dakota State Horticultural Societies Nov 1930

North And South Dakota Horticulture, November 1930, North And South Dakota State Horticultural Societies

North and South Dakota Horticulture

Volume 2, Number 11

Shrubs and Autumn Coloring, Mrs. M.W. Sheafe, Watertown
North Dakota State Horticultural Society, October, 1930, News Letter, C.B. Waldron, Secretary, Fargo, North Dakota
Horticultural Notes, Oliver Strand, Fargo, North Dakota
Extracts from the Diary of a Traveling Man, W.A. Simmons, Sioux Falls
Tulips -- Planting and Varieties, Thos. W. Hobart, Sioux Falls
Squashes and Pumpkins of the North Dakota Indians, George Will, Bismark, North Dakota
Garden Notes, F.X. Wallner, Sioux Falls
Beekeepers' News Notes, J.A. Munro, State Entomologist, Fargo, North Dakota
Notes to Nurserymen, J.A. Munro, State Entomologist, Fargo, North Dakota
Trees, Otis Dill, Landscape Architect, …


North And South Dakota Horticulture, October 1930, North And South Dakota State Horticultural Societies Oct 1930

North And South Dakota Horticulture, October 1930, North And South Dakota State Horticultural Societies

North and South Dakota Horticulture

Volume 2, Number 10

Garden Observations, Mrs. M.W. Sheafe, Watertown
North Dakota State Horticultural Society, September 1930, News Letter, C.B. Waldron, Fargo
Extracts from the Diary of a Traveling Man, W.A. Simmons, Sioux Falls
Watering Lawns, Thomas W. Hobart, Sioux Falls
Garden Notes, F.X. Wallner, Sioux Falls
The Slate-Colored Junco, O.A. Stevens, Fargo
Reforestation in Minnesota, Ray P. Speer, Minneapolis
The Gladiolus and Its Cultivation, Dr. T.E. Barber, Grand Forks
Horticultural Notes, Oliver Strand, Fargo
North Dakota Beekeeping Notes, J.A. Munro, Fargo


North And South Dakota Horticulture, September 1930, North And South Dakota State Horticultural Societies Sep 1930

North And South Dakota Horticulture, September 1930, North And South Dakota State Horticultural Societies

North and South Dakota Horticulture

Volume 2, Number 9

Garden Observations, Mrs. M.W. Sheafe, Watertown
North Dakota State Horticultural Society News Letters, A.F. Yeager, Fargo, North Dakota
Extracts from the Diary of a Traveling Man, W.A. Simmons, Sioux Falls
Rating the New Fruits, John Robertson, Hot Springs
Wild Flowers of Autumn, O.A. Stevens, Fargo, North Dakota
What Good is the Buffalo Berry, Claude A. Barr, Smithwick
Garden Notes, F.X. Wallner, Sioux Falls
Report of Summer Convention of North Dakota Beekeepers' Association Held at Carrington, North Dakota, July 18, 1930
The White-Throated Sparrow, O.A. Stevens, Fargo, North Dakota
Fruits and Bees in Clark County, E.I. Underwood, …


North And South Dakota Horticulture, August 1930, North And South Dakota State Horticultural Societies Aug 1930

North And South Dakota Horticulture, August 1930, North And South Dakota State Horticultural Societies

North and South Dakota Horticulture

Volume 2, Number 8

Certified Seed Potatoes, D.J. MacLeod, Fredericton, N.B.
North Dakota State Horticultural Society News Letter, A.F. Yeager, Fargo, N. Dak
Garden Notes, F.X. Wallner, Sioux Falls
Deceiving the Bees, G.B. Gooderham, Dominion Apiarist
Extracts from the Diary of a Traveling Man, W.A. Simmons, Sioux Falls
Pruning Ornamental Shrubs and Hedges, A.E. Hutchins
Fruit Crop Situation, John Robertson, Hot Springs
Celery and Tomatoes, Thos. W. Hobart, Sioux Falls
The Iris, Mrs. M.W. Sheafe, Watertown
Water Lilies, Geo. W. Gurney, Yankton
South Dakota Horticultural Meeting, Prof. L.E. Longley, University of Minnesota


North And South Dakota Horticulture, July 1930, North And South Dakota State Horticultural Societies Jul 1930

North And South Dakota Horticulture, July 1930, North And South Dakota State Horticultural Societies

North and South Dakota Horticulture

Volume 2, Number 7

Cost of Being Sold, E.C. Hilborn, Valley City
North Dakota State Horticultural Society News Letter, A.F. Yeager, Fargo
Extracts from the Diary of a Traveling Man, W.A. Simmons, Sioux Falls
North Dakota Beekeepers' Notes, J.A. Monroe, Fargo
Garden Notes, F.X. Wallner, Sioux Falls
Bird Study by the Banding Method, O.A. Stevens, Fargo
Flowered Paths Abroad, Mrs. Ada Neill, Watertown


North And South Dakota Horticulture, June 1930, North And South Dakota State Horticultural Societies Jun 1930

North And South Dakota Horticulture, June 1930, North And South Dakota State Horticultural Societies

North and South Dakota Horticulture

Volume 2, Number 6

Garden Notes, F.X. Wallner, Sioux Falls
North Dakota State Horticultural Society May 1930 News Letter, A.F. Yeager, Fargo
Extracts from the Diary of a Traveling Man, W.A. Simmons, Sioux Falls
Extract from "Adorning the Farmstead," W.R. Leslie, Morden, Manitoba, Canada
How to Name the Birds, O.A. Stevens, Fargo
For South Dakota
North Dakota Beekeeping Notes, J.A. Monroe, Fargo
A More Practical Tree Bounty Law, Seth M. Hulbert, Caputa
Orchard Notes, C. Bolles, McCook, Nebraska


South Dakota Horticulturist, April 1930, South Dakota State Horticultural Society Apr 1930

South Dakota Horticulturist, April 1930, South Dakota State Horticultural Society

North and South Dakota Horticulture

Volume 2, Number 4

Grafting Experience in Nebraska, C. Bolles, McCook, Nebraska
Newer Apples Tried in South Dakota, John Robertson, Hot Springs
Garden Notes, F.X. Wallner, Sioux Falls
Extracts from the Diary of a Traveling Man, W.A. Simmons
Crater Pools, Thos. W. Hobart
Varieties of Strawberries, E.A. Gates, Rapid City
Growing Gladiolus in the Black Hills, L.S. Hamm, Rapid City
Evergreens, Dr. H.M. Freeburg, Watertown
Premium List


South Dakota Horticulturist, March 1930, South Dakota State Horticultural Society Mar 1930

South Dakota Horticulturist, March 1930, South Dakota State Horticultural Society

North and South Dakota Horticulture

Volume 2, Number 3

Fruit and Gardening Experiences in Manitoba, Mrs. Wm. Dumbrill, Manitoba, Canada
Extracts from the Diary of a Traveling Man, W.A. Simmons
No Need for a Barren School Yard or Farmstead, Frank D. Kriebs, Secretary of Agriculture
Make Your Home More Beautiful, Mrs. Earl Dickerson, Irene, South Dakota
Strawberry Culture in Western South Dakota, E.A. Gates, Rapid City, South Dakota
A Million Dollars Worth of Trees Saved in Arkansas
Growing Roses in the Black Hills, L.S. Hamm, Rapid City, South Dakota
Chinese Elm, H.N. Dybvig, Colton, South Dakota
Garden Notes, F.X. Wallner, Sioux Falls, South Dakota
Premium …


South Dakota Horticulturist, February 1930, South Dakota State Horticultural Society Feb 1930

South Dakota Horticulturist, February 1930, South Dakota State Horticultural Society

North and South Dakota Horticulture

Volume II, Number 2

The Box Elder in its Place and Out of Place, Anson L. Crawford, Brookings
Why Use Certified Nursery Stock, E.L. Chambers
National Flower and Garden Show, to be Held in Minneapolis, March 29-April 6
Extracts from the Diary of a Traveling Man, W.A. Simmons
Flower Shows Benefit Community, Mrs. J.C. Lepler, Watertown
Street Tree Planting as a Function of Park Department or Tree Planting Commissioner, W.E. Webb, Mitchell
Dahlia Growing in the Black Hills, L.S. Hamm, Rapid City
Garden Notes, F.X. Wallner, Sioux Falls
Beekeepers Should Prepare for the Coming Summer, C.B. Gooderham
Two Strains of …


South Dakota Horticulturist, January 1930, South Dakota State Horticultural Society Jan 1930

South Dakota Horticulturist, January 1930, South Dakota State Horticultural Society

North and South Dakota Horticulture

Volume 2, Number 1

The Columbine, Mrs. M.W. Sheafe, Watertown, S.D.
Annual Meeting, January 8-9
Extracts From the Diary of a Traveling Man, W.A. Simmons
The Perennial Fruit and Vegetable Garden, Purley L. Keene, Brookings, S.D.
Hardy Roses, Mrs. Geo. W. Dixon, Watertown, S.D.
Beautiful Flower Garden Combinations, John P. DePagter, Yankton, S.D.
Garden Notes, F.X. Wallner, Sioux Falls, S.D.
Horticultural Specialties for 1930, Max Pfaender, Sioux Falls, S.D.
Preserving Apples With Sulphur Fumes
Premium List


A Study Of The Farm Shop Curriculum, Robert B. Fall Jan 1930

A Study Of The Farm Shop Curriculum, Robert B. Fall

Electronic Theses and Dissertations

The building of a course to teach the principles underlying mechanical operations on farms has been and still is under criticism, and probably will continue to be for some time to come; but it is such an important brench, or part, of farming that was thought that any contribution which could be made to assist in a better understanding of the problem would be worth while, hence this study.


The Anatomy Of The Germinating Bulbil Of Lilium Tigrinum, Katherine Harris Tripp Jan 1930

The Anatomy Of The Germinating Bulbil Of Lilium Tigrinum, Katherine Harris Tripp

Electronic Theses and Dissertations

Apparently very little, if any, anatomical investigation has been made of the bulbil of Lilium tigrinum, though it has often been used as a propagating organ and consequently, the problem suggested attractive possibilities in an almost virgin field of investigation. Collections were made from five different plants beginning Sept. 27, 1928 until July 22, 1929. The older bulbils were removed from the axils of the foliage leaves and fixed in formalin acetic alcohol. They were gradually dehydrated by treatment with alcohol increasing the percentage 10% from 50 up to 100%. Xylol treatment in increasing percentages was then resorted to, until …


Abortive Stamens And Carpels In Lychnis Alba, Gus B. Ulvin Jan 1930

Abortive Stamens And Carpels In Lychnis Alba, Gus B. Ulvin

Electronic Theses and Dissertations

Botanists have long been interested in the manner of "sex expression" in plants. Some plant shave perfect flowers, that is, both sexes are expressed in a single flower, with no variation from this condition within the species. Other plants have flowers in which only one or the other sex is expressed, while still other plants occur in which "pure staminate or pure carpellate and all intermediate degrees" occur.


South Dakota Horticulturist, December 1929, South Dakota State Horticultural Society Dec 1929

South Dakota Horticulturist, December 1929, South Dakota State Horticultural Society

North and South Dakota Horticulture

Volume 1, Number 10

Flower Suggestions, Mrs. M.W. Sheafe, Watertown, South Dakota
Use of Paraffine Makes Grafting Easy, C.V. Porter, Menominee, Wisconsin
How to Make Clear Cider for Future Use
Extracts from the Diary of a Traveling Man, W.A. Simmons, Sioux Falls, South Dakota
The Perennial Fruit and Vegetable Garden, Purley L. Keene, Brookings, South Dakota
Annual Meeting to be Held in Watertown, January 8-9
More Trees, Frank D. Kriebs, Secretary of Agriculture, Pierre, South Dakota
Native Fruits and Ornamentals, W.D. Albright, Beaverlodge, Alberta
Methods of Wintering Bees in Manitoba, E. Braun, Morden, Manitoba
Garden Notes, F.X. Wallner, Sioux Falls, …


South Dakota Horticulturist, November 1929, South Dakota State Horticultural Society Nov 1929

South Dakota Horticulturist, November 1929, South Dakota State Horticultural Society

North and South Dakota Horticulture

Volume 1, Number 9

Perennial Asters, Mrs. M.W. Sheafe, Watertown, South Dakota
Whitewash Young Trees, Clayton L. Long, Oregon State Agricultural College
Fruit for Exhibition
Extracts from the Diary of a Traveling Man, W.A. Simmons, Sioux Falls, South Dakota
Hardy Manitoba Plants Brought Here for Study
Garden Notes, F.X. Wallner, Sioux Falls, South Dakota
Peonies Give Happiness, Charles McCaffree, Sioux Falls, South Dakota
Opportunities in Bee Club Work
Rock Gardens, Thomas W. Hobart, Sioux Falls, South Dakota
Preparing Colonies of Bees for Winter
Mushrooms as Food
Perennial Flowers for State Parks, J.B. Taylor, Ipswich, South Dakota


South Dakota Horticulturist, October 1929, South Dakota State Horticultural Society Oct 1929

South Dakota Horticulturist, October 1929, South Dakota State Horticultural Society

North and South Dakota Horticulture

Volume 1, Number 8

A Few Worthwhile Perennials -- Mrs. M.W. Sheafe, Watertown, South Dakota
State Park Possibilities of Northeastern South Dakota -- L.M. Meland, Sisseton, South Dakota
Extracts from the Diary of a Traveling Man -- W.A. Simmons, Sioux Falls, South Dakota
The Mediterranean Fruit Fly
From "Travel Observations" -- Chas. McCaffree, Sioux Falls, South Dakota
Plant Names -- Mrs. M.W. Sheafe, Watertown, South Dakota
Preparing Colonies of Bees for Winter
Blanching Celery
Report on Cherry Setting -- R.H. Roberts, Wisconsin College of Agriculture
Rock Garden Plants for the Beginner
When Fruit Juice is not Fruit Juice


South Dakota Horticulturist, September 1929, South Dakota State Horticultural Society Sep 1929

South Dakota Horticulturist, September 1929, South Dakota State Horticultural Society

North and South Dakota Horticulture

Volume 1, Number 7

Taking the Crop Without the Bees Knowledge, W.G. LeMaistre, Central Experiment Farm, Ottawa, Ont., Can.
The Sunshine State's Best Flower, Charles McCaffree, Sioux Falls, South Dakota
Extracts from the Diary of a Traveling Man, W.A. Simmons, Sioux Falls, South Dakota
Fall Planting in South Dakota, Max Pfaender, Sioux Falls, South Dakota
A Novices Experience in Fruit and Forest Tree Growing, Paul L. Werth. Frankfort, South Dakota
Diagnosis, Cause and Control of Bee Disease
Flower Show People Make Hot Springs Glad Town
Premium List


South Dakota Horticulturist, August 1929, South Dakota State Horticultural Society Aug 1929

South Dakota Horticulturist, August 1929, South Dakota State Horticultural Society

North and South Dakota Horticulture

Volume, Number 6

Bees and Apple Pollination
Brookings Flower Show was Featured by a Splendid Display of Peonies
Extracts from the Diary of a Traveling Man, W.A. Simmons, Sioux Falls, South Dakota
Barberries Good and Bad, John L. Richardson, U.S. Department of Agriculture
Full Sheets of Foundation and Why, W.G. LeMaistre, Central Experiment Farm, Ottawa, Ont.
Dahlias for Watertown, A.J. Albrook, Watertown, South Dakota
Coding Moth, South Dakota State Entomologist
Beresford's New Garden Club to have Flower Show, L.D. Martelle, Beresford, South Dakota
Notes, North Dakota News Letter
Premium List


South Dakota Horticulturist, July 1929, South Dakota State Horticultural Society Jul 1929

South Dakota Horticulturist, July 1929, South Dakota State Horticultural Society

North and South Dakota Horticulture

Volume 1, Number 5

Four-H Garden Clubs for Boys and Girls -- H.N. Jones State Club Leader, Brookings S. Dak
The Oka Cherry -- Emil Pfaender, Yankton, S. Dak
Extracts from the Diary of a Traveling Man -- W.A. Simmons, Sioux Falls, S. Dak
A Hardy Flower Garden -- Mrs. M.W. Sheafe, Watertown, S. Dak
The Apple Maggot -- Entomology Department, South Dakota State College
Requeening Colonies and Why -- A.H.W. Birch, Apiarist Central Exp. Farm, Ottawa, Ont.
The Bee and Honey Situation
Barberries, Good and Bad -- John L. Richardson, U.S. Department of Agriculture
Installment Pruning -- Claude A. …


South Dakota Horticulturist, June 1929, South Dakota State Horticultural Society Jun 1929

South Dakota Horticulturist, June 1929, South Dakota State Horticultural Society

North and South Dakota Horticulture

Volume 1, Number 4

Burlington Road in Tree Planting Work -- Deadwood Daily Pioneer-Times
The Peony -- Mrs. M.W. Sheafe, Watertown, S. Dak
Brookings Garden Club -- Purley L. Keene, Brookings, S. Dak
Extracts from the Diary of a Traveling Man -- W.A. Simmons, Sioux Falls, S. Dak
State Parks for South Dakota -- E.J. Waltner, Hurley, S. Dak
Evergreen Trees for Shelter and Ornaments -- H.N. Dybvig, Colton, S. Dak
Street Tree Planting -- E. Webb, Mitchell, S. Dak
The Iris, Our Hardiest Flower -- Thos. F. Stecher, Howard, S. Dak
Native Fence Posts -- Anson L. Crawford, Brookings, …


South Dakota Horticulturist, May 1929, South Dakota State Horticultural Society May 1929

South Dakota Horticulturist, May 1929, South Dakota State Horticultural Society

North and South Dakota Horticulture

Volume 1, Number 3

Why Delay Planting -- Mrs. M.W. Sheafe, Watertown, S.D.
The Chinese Elm -- Max Pfaender, Sioux Falls, S.D.
Spraying Formulas for Apples, Plums and Sandcherries -- George Gilbertson, Brookings, S.D.
Extracts from the Diary of a Traveling Man -- W.A. Simmons, Sioux Falls, S.D.
Garden Clubs for South Dakota -- Charles McCaffree, Librarian, State Horticultural Society
Potatoes and Potato Growing -- Clifford J. Franzke, Brookings, S.D.
Seedage and Transplanting -- J.B. Wood, Brookings, S.D.
Hardy Perennial Flowers -- Mrs. M.W. Sheafe, Watertown, S.D.
Premium List


South Dakota Horticulturist, April 1929, South Dakota State Horticultural Society Apr 1929

South Dakota Horticulturist, April 1929, South Dakota State Horticultural Society

North and South Dakota Horticulture

Volume 1. Number 2.

The Sugar Crab, Fine to Eat or Can, by John M. Downer, Freeman, S.D.
Landscaping for South Dakota, by Max Pfaender, Sioux Falls, S.D.
Hardy Apples for South Dakota, by John Robertson, Hot Springs, S.D.
New Red Silver Crab, by J.M. Bennet, Brookings S.D.
The Mendel Pear, by Max Pfaender, Sioux Falls, S.D.
Construction and Management of Hotbeds, by Purley L. Keene, Brookings, S.D.
History of the Aberdeen Beekeepers Association, by Mrs. Grover Lathrop, Aberdeen, S.D.
Simple Control for Crowngall and Root-Knot Found
membership Contest
Premium List


South Dakota Horticulturist, April 1929, South Dakota State Horticultural Society Apr 1929

South Dakota Horticulturist, April 1929, South Dakota State Horticultural Society

North and South Dakota Horticulture

Volume 1, Number 2

The Sugar Crab, to East or Can, by John M. Downer, Freeman, S.D.
Landscaping for South Dakota, by Mac Pfaender, Sioux Falls, S.D.
Hardy Apples for South Dakota, by John Robertson, Hot Springs, S.D.
New Red Silver Crab, by J.M. Bennet, Brookings, S.D.
The Mendel Pear, by Max Pfaender, Sioux Falls, S.D.
Construction and Management of Hotbeds, by Purley L. Keene, Brookings, S.D.
History of the Aberdeen Beekeepers Association, by Mrs. Grover Lathrop, Aberdeen, S.D.
Simple Control for Crowngall and Root-Knot Found
Membership Contest
Premium List


South Dakota Horticulturist, March 1929, South Dakota State Horticultural Society Mar 1929

South Dakota Horticulturist, March 1929, South Dakota State Horticultural Society

North and South Dakota Horticulture

Volume 1, Number 1

Foreword -- W.A. Simmons, Sioux Falls, S.D.
Dr. N.E. Hansen and His Inventions -- Chas. McCaffree, Sioux Falls, S.D.
The Lily ool a Garden Joy -- J.B. Taylor, Ipswich, S.D.
Largest Orchard Grows New Pears -- John Robertson, Hot Springs, S.D.
Garden Gleanings -- Mrs. M.W. Sheafe, Watertown, S.D.
The Rainbow Flower Fine for the Sunshine State -- Chas. McCaffree, Sioux Falls, S.D.
Apple Growing in Central South Dakota -- Oliver Marion, Ft. Pierre, S.D.
Honey Resources of South Dakota -- A.G. Pastian, Webster, S.D.
Desirable Good Things for South Dakota Gardens -- F.X. Wallner, Sioux …


South Dakota Horticulturist, March 1929, South Dakota State Horticultural Society Mar 1929

South Dakota Horticulturist, March 1929, South Dakota State Horticultural Society

North and South Dakota Horticulture

Volume 1. Number 1.

Foreword - W.A. Simmons , Sioux Falls, S.D.
Dr. N. E. Hansen and His Inventions - Chas. McCaffee, Sioux Falls, S.D.
The Lily Pool of a Garden Joy - J.D. Taylor, Ipswich, S.D.
Largest Orchard Grows New Pears - John Robertson, Hot Springs, S.D.
Garden Gleanings - Mrs. W.M. Shaefe, Watertown, S.D.
The Rainbow Flower Fine for the Sunshine State - Chas McCaffree, Sioux Falls, S.D.
Apple Growing in Central South Dakota - Oliver Marion, Ft. Pierre, S.D.
Honey Resources of South Dakota - A.G. Pastian, Webster, S.D.
Desirable Good Things for South Dakota Gardens - …


1929 Little International Agricultural Exposition Catalog, Little International Agricultural Exposition South Dakota State University Feb 1929

1929 Little International Agricultural Exposition Catalog, Little International Agricultural Exposition South Dakota State University

Little International "Little I" Agricultural Exposition Catalogs

No abstract provided.


The Morphology, Life History, And Control Of Some Common Species Of Oniscoidea Found In South Dakota, M. T. Fredricksen Jan 1929

The Morphology, Life History, And Control Of Some Common Species Of Oniscoidea Found In South Dakota, M. T. Fredricksen

Electronic Theses and Dissertations

Since practically no work has been done upon the life history and development of the common pill bugs or sow bugs, it is the aim of this paper to record the investigations of the life history and development as carried on by the author. The morphology was added in order to give the reader a definite idea of the organization and structure of these species.