Life Sciences Commons^™

Trees Of Western Australia. Eight Eucalyptus Trees From The Tropical North. 47. Long-Fruited Bloodwood (Eucalyptus Polycarpa, F. Muell.). 48. Mountain Bloodwood (E. Terminalis, F. Muell.). 49. Mount House Box (E. Argillacea, V.W. Fitzg. Ex Maiden). 50. Yellow Jacket (E. Lirata W.V. Fitzg. Ex Maiden). 51. Mountain White-Gum (E. Mooreana W.V. Fitzg. Ex Maiden). 52. (E. Oligantha Schau). 53. (E. Brachyandra, F. Muell.). 54. Variable-Barked Bloodwood (E. Dichromphloia, F. Muell.), Charles Austin Gardner

Journal of the Department of Agriculture, Western Australia, Series 4

THIS tree which attains a height of 35 to 40 ft. is one of the common roughbarked trees of the open woodlands of the Kimberleys where the soil is sandy, and it is often associated with the woollybutt (E. miniata).

Some Aspects Of Regeneration Silviculture In Spruce-Aspen Stands In Alberta, L. A. Smithers

Aspen Bibliography

Surveys of spruce-aspen stands in Northern Alberta have shown that natural regeneration of white spruce is generally a failure on areas which have been logged but not burned (Candy 1951).

Growth Of Alberta White Spruce After Release From Aspen Competition, L. A. Smithers, G Ontkean

Aspen Bibliography

At the present time spruce sawtimber is the most important single commodity produced from the forests of Alberta.

Aspen Leaf Blight In The Intermountain Region, James L. Mielke

Aspen Bibliography

No abstract provided.

The Growth And Yield Of Aspen In Saskatchewan, C. L. Kirby, W. S. Bailey, J. G. Gilmour

Aspen Bibliography

No abstract provided.

Field Guide To Aid In Recognition Of Natural Triploid Aspen, Philip N. Joranson, Dean W. Einspahr, J P. Van Buijtenen

Aspen Bibliography

Swedish experience with the genetic improvement of the European aspen (Populus tremula L.), a species which is closely kin to our North American quaking aspen (P. tremuloides Michx.), suggests that the rate of volume increment and the length of fiber tracheids might both be increased in North American aspen by finding or producing trees which possess a triple set, rather than the usual double set, of "chromosomes". Chromosomes (Figure 1) are found within and inner region--the nucleus--of each of the millions of cells formed during the growth of a tree.

The Convergent Improvement Test Of The Genetic Basis Of Hybrid Vigor, R. A. Kroman

Journal of the Minnesota Academy of Science

No abstract provided.

Early Release From Aspen Improves Yield Of Pine Plantations, E.I. Roe

Aspen Bibliography

No abstract provided.

Records Of Mammals From The Mexican State Of San Luis Potosi, Walter W. Dalquest

Occasional Papers of the Museum of Natural Science, Louisiana State University

No abstract provided.

Aspen Management Problems Of The Lake States, Z.A. Zasada

Aspen Bibliography

No abstract provided.

How To Control Undesirable Trees And Shrubs, Maurice W. Day

Aspen Bibliography

No abstract provided.

New Birds From The State Of San Luis Potosi And The Tuxtla Mountains Of Veracruz, Mexico, George H. Lowery Jr., Robert J. Newman

Occasional Papers of the Museum of Natural Science, Louisiana State University

No abstract provided.

Aspen Defiberization And Refining Of Product, Robert Craig Jr.

Aspen Bibliography

Because of the great demand for wood fiber and because there is an abundance of aspen available¹/ for this purpose, its conversion into a usable fiberized material offers possibilities. It also affords an outlet for low-quality bolts developed in any aspen logging operation or from land of poor quality.

Aspen Properties And Uses, Zigmond A. Zasada

Aspen Bibliography

Because of the large demand for lumber during the last 10 years, and particularly during the war period, aspen has entered many new fields of use. At present there is widespread interest in the possibilities of building new industries and extending the life of old ones by increased use of aspen. Many people are interested in becoming familiar with this wood. This report has been prepared to give general information on the properties and present uses of aspen and also to help in correcting some of the existing erroneous ideas about this wood.

A Cytological Study Of The Salivary Gland Chromosomes Of The Attached-X Variety Of Drosophila Melanogaster, Jack Schull

Bachelors’ Theses

The detailed study of -the salivary chromosomes of the Diptera has been of great importance in substantiating cytologically the theories of genetics. A noteworthy example of the importance of cytological study is the non-disjunctive phenomenon which has occurred on at least several occasions in the strain of Drosophila melanogaster. Bridges (1913) was the first to report nondisjunction of sex chromosomes which was an important confirmation of the chromosome theory. L. V. Morgan (1922) used the cytological study of the germ cells of Drosophila melanogaster to prove that there was no disjunction of the sex chromosomes in the attached-X strain.

A Distributional Survey Of The Birds Of Sonora, Mexico, A. J. Van Rossem

Occasional Papers of the Museum of Natural Science, Louisiana State University

No abstract provided.

A Second Revision Of The Seaside Sparrows, Ludlow Griscom

Occasional Papers of the Museum of Natural Science, Louisiana State University

No abstract provided.

Geographic Variation Of Bewick Wrens In The Eastern United States, John W. Aldrich

Occasional Papers of the Museum of Natural Science, Louisiana State University

No abstract provided.

Geograpical Variation In The Red-Bellied Woodpecker In The Southeastern United States, Thomas D. Burleigh, George H. Lowery Jr.

Occasional Papers of the Museum of Natural Science, Louisiana State University

No abstract provided.

The Bird Life Of The Gulf Coast Region Of Mississippi, Thomas D. Burleigh

Occasional Papers of the Museum of Natural Science, Louisiana State University

No abstract provided.

Seeding Grass On Deteriorated Aspen Range, A. Perry Plummer, George Stewart

Aspen Bibliography

The herbaceous undercover on much of the aspen range in the Intermountain region is badly deteriorated. These areas, naturally highly productive, when revegetated can contribute greatly towards a much needed supply of range forage. One of the major obstacles to successful seeding has been the difficulty of getting the seeds covered with soil since both standing and fallen trees interfere with the use of drills, harrows, or other machinery. In the search for methods to overcome this difficulty, it was found that for open aspen stands the covering of seeds is unnecessary when the right precautions are taken in other …

A New Race Of Brown-Headed Chickadee From Northern Washington, Alden H. Miller

Occasional Papers of the Museum of Natural Science, Louisiana State University

No abstract provided.

Birds Of Linares And Galeana, Nuevo León, Mexico, George Miksch Sutton, Olin Sewall Pettingill Jr.

Occasional Papers of the Museum of Natural Science, Louisiana State University

No abstract provided.

The Yellow-Crowned Night Heron Of Socorro Island, Mexico, A. J. Van Rossem

Occasional Papers of the Museum of Natural Science, Louisiana State University

No abstract provided.

Check-List Of The Mammals Of Louisiana And Adjacent Waters, George H. Lowery Jr.

Occasional Papers of the Museum of Natural Science, Louisiana State University

No abstract provided.

How To Reseed Utah Range Lands, A. Perry Plummer, Richard M. Hurd, C. Kenneth Pearse

Aspen Bibliography

Additional low cost forage is urgently needed by Utah's range livestock industry. Seeding of depleted tracts in accordance with recently developed methods and principles will help supply this forage and is entirely feasible. Where the value of the increased forage will repay the cost of planting, careful reseeding of selected sites is fully justified.

The important part that reseeding can play in restoring ranges to their former capacity has been demonstrated. Although satisfactory results can be obtained on many sites during average or better years, much more study is needed to insure consistent success in abnormal years and to extend …

An Experimental Attempt To Modify The Sex Ratio Of Drosophila Melanogaster, Herman Weingrod

Bachelors’ Theses

Sex control has been defined as the science of producing male or female offspring at will by artificial means. Because of the far reaching consequences of such a technique, man has always had a strong desire to control the sex of his offspring. The ancient Egyptians attempted it by means of magic, while the old Hebrew Talmud offered suggestions for its practice based on practical experience. The problem as such forms part of the folklore and superstition of many ancient races and peoples.

A New Barn Swallow From The Gulf Coast Of The United States, Thomas D. Burleigh

Occasional Papers of the Museum of Natural Science, Louisiana State University

No abstract provided.

An Inland Race Of Sterna Albifrons, Thomas D. Burleigh, George H. Lowery Jr.

Occasional Papers of the Museum of Natural Science, Louisiana State University

No abstract provided.

Notes On The Birds Of Southeastern Coahuila, Thomas D. Burleigh, George H. Lowery Jr.

Occasional Papers of the Museum of Natural Science, Louisiana State University

No abstract provided.