Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

Physical Sciences and Mathematics

Institution
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 288301 - 288330 of 293042

Full-Text Articles in Entire DC Network

Some Results With Nitrogen Fertiliser On Cereals At Esperance Plain Research Station, William John Toms Jan 1960

Some Results With Nitrogen Fertiliser On Cereals At Esperance Plain Research Station, William John Toms

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

ON newly-cleared land at Esperance Plain Research Station the use of sulphate of ammonia on cereals has proved profitable over a number of seasons.

The response to sulphate of ammonia varies markedly with the season.


Contour Banks For Filling Dams, B A'B Marsh Jan 1960

Contour Banks For Filling Dams, B A'B Marsh

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

A LTHOUGH contour banks have been used in this State for many years to lead water into earth tanks or "dams," it is only comparatively recently that the idea has become really popular.

Thanks to the publicity given to this matter during the last three years many farmers now know that dams may be filled by contour banks, but because they do not know the finer points of the method, they are apt to mislead themselves into thinking that their territory is unsuitable for putting it into practice.


Rabbit Control In 1960, C Marshall Jan 1960

Rabbit Control In 1960, C Marshall

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

IN the year 1859, an enthusiastic sportsman in Victoria took delivery from the clipper "Lightning" of a small consignment of wild European rabbits which he joyfully released on his estate at Barwon Park, near Geelong, in order to assure himself of some rough shooting.

He was not the only rabbit importer on record—tame rabbits were brought into Australia before and after 1895 and doubtless there were other importations of the wild rabbit—but he is generally credited—or discredited—with having triggered off the rabbit plague.


Drought Feeding Of Sheep, Laurence C. Snook Jan 1960

Drought Feeding Of Sheep, Laurence C. Snook

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

WHEN this talk on drought feeding of sheep was suggested conditions were very serious over large tracts of pastoral country.

Many stations had not received a worthwhile rain for over 12 months and it appeared that grazing animals would have to be fed if they were to survive.

Requests have been received for advice on the cheapest way to keep sheep alive. Drought feeding in any form is a gamble. There is always the risk that the stock will eventually die despite the consumption of much costly feed.

It follows that if an effort is to be made to save …


Reclaiming Salt Land With Bluebush, Stanley Thomas Smith Jan 1960

Reclaiming Salt Land With Bluebush, Stanley Thomas Smith

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

IN Western Australia there are approximately a million acres of salt land, some of which is a serious economic problem to individual farmers, unfortunate enough to have the major portion of their properties affected by salt encroachment.


Feeding Pickled Wheat To Pigs, Department Of Agriculture, Western Australia Jan 1960

Feeding Pickled Wheat To Pigs, Department Of Agriculture, Western Australia

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

INQUIRIES are frequently received from farmers asking whether it is safe to feed pickled wheat to pigs, and if so, the quantities which would be suggested.

Until very recently there was no experimental information on the safety or possible dangers of these wheat pickling agents, but feeding trials completed last year at the Animal Health and Nutrition Laboratory, Nedlands, have provided some of the answers to these questions.


A Useful Farm-Made Roller, V E. Western Jan 1960

A Useful Farm-Made Roller, V E. Western

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

A very serviceable compacting roller can be constructed at little expense by using discarded truck tyres.

The roller described here has an overall width of 5 ft. 3 in. and carries seven 9.00 x 24 semi-trailer tyres which had been discarded when the treads were worn smooth.


Bluebush Seed Supplies, C V. Malcolm Jan 1960

Bluebush Seed Supplies, C V. Malcolm

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

A GREAT deal of publicity has been given of late to the value of bluebush (Kochia brevifolia) as a plant for some types of salt-affected land, particularly in the drier parts of the wheatbelt.

Obtaining seed supplies can be a problem, but fortunately large amounts of seed are not required since once a few bushes are established they will spread seed over the intervening areas.

Thus rates of 1 to 2 lb of seed per acre have been found quite satisfactory.


Black Spot Of Tomatoes, R F. Doepel Jan 1960

Black Spot Of Tomatoes, R F. Doepel

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

BLACK SPOT DISEASE IS THE MOST SERIOUS FOLIAGE BLIGHT OF TOMATOES IN THIS STATE. IN SEASONS FAVOURABLE TO ITS DEVELOPMENT SEVERE DEFOLIATION AND FRUIT ROTTING ARE EXPERIENCED.

IN Western Australia, black spot, which is also known as early blight and target spot, is a troublesome disease of long standing. It is caused by the fungus Alternaria solani which also attacks potatoes.


The Development Of Western Australian Sand Plain Soils For Agriculture, Richard Philip Roberts, F. L. Shier Jan 1960

The Development Of Western Australian Sand Plain Soils For Agriculture, Richard Philip Roberts, F. L. Shier

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

IN a recently published economic survey of the Australian wheat growing industry, it was reported that nearly two-thirds of the farms surveyed in Western Australia were located on lateritic "sand plain."

As a random selection was made of the eighty farms that were visited it is reasonable to conclude that a similar proportion of all the State's wheat producing farms are on that type of country.

This constitutes a remarkable change from the earlier days of wheat belt settlement when the sand plain soils were regarded as virtually useless and by-passed for development.

It is the purpose of this article …


3-Amino-2,5-Dihydroxy-5-Sulfo-Benzoic Acid, Hideo Tomomatsu Jan 1960

3-Amino-2,5-Dihydroxy-5-Sulfo-Benzoic Acid, Hideo Tomomatsu

University of the Pacific Theses and Dissertations

It seems possible that efforts to discover essential chemical differences which might exist between normal and malignant cells will eventually reveal the secret of cancer and thereby lead to new approaches to safer and more selective chemotherapy.

One objective of this study is to find that part of this molecule that causes it to concentrate in the tumor and thence make a smaller size compound which has similar concentration characteristics to tumor as tetracycline. For this purpose, an attempt was made in this study to synthesize the right side ring of Chlorotetracycline, the structure of which is shown below. [see …


Yakir Aharonov Dissertation, Yakir Aharonov Jan 1960

Yakir Aharonov Dissertation, Yakir Aharonov

Faculty Collections

Yakir Aharonov's Dissertation entitled "Some Problems in the Quantum Theory of Measurements."


Cyclic Sedimentation Of The Upper Fayetteville Formation, Faramarz Frouzan Jan 1960

Cyclic Sedimentation Of The Upper Fayetteville Formation, Faramarz Frouzan

Masters Theses

"In the past decade considerable interest has developed in the geology of the Boston Mountain area of northern Arkansas. This has been due to exploration for oil and gas in-the area and the related desire to know more about the structure and stratigraphy of the region. Principal work has been done by the University of Arkansas, the United States Geological Survey, and oil companies. This study involves only one of the formations making up the geologic column in the Boston Mountains, the Upper Mississippian (Chesterian Series) Fayetteville Formation.

Portions of the upper part of the Fayetteville Formation of northwestern Arkansas …


Distribution And Undesirable Characteristics Of Certain Wild Birds And Animals Barred From Importation Or Restricted In Importation Into The State Of California, Walter S. Ball Jan 1960

Distribution And Undesirable Characteristics Of Certain Wild Birds And Animals Barred From Importation Or Restricted In Importation Into The State Of California, Walter S. Ball

Other Publications in Wildlife Management

The legislative act governing the importation of wild birds and animals into the State of California is set forth in Division 3, Chapter 2, Articles 1, 2 and 3 of the Fish and Game Code. This law is specific in its treatment of all questionable species. The joint regulations of the Fish and Game Commission and the Department of Agriculture governing the importation of wild birds and animals, and conditions under which same may be kept in confinement are set forth in Part 3, Chapter 3, Section 671, Title 14 of the California Administrative Code.

All species and families listed …


The Dispersal And Acclimatization Of The Muskrat, Ondatra Zibethicus (L.), In Finland, Atso Artimo Jan 1960

The Dispersal And Acclimatization Of The Muskrat, Ondatra Zibethicus (L.), In Finland, Atso Artimo

Other Publications in Wildlife Management

The natural range of the muskrat, Ondatra zibethicus (L.), comprises the major part of the North American continent (Fig. 1). In the northern and eastern parts of its range its distribution is more or less continuous, but in the arid west it is very patchy. The species is absent from some areas which, according to Storer (1938), are suitable for it. This writer assumes (op.cit. pp. 159-160) that »Muskrats probably reached some of the now isolated waters of the West during a period when aquatic and palustrine habitats were more widespread, in late Pleistocene or postglacial times. With subsequent contraction …


Kimberley Research Station : A Progress Report, Department Of Agriculture, Western Australia Jan 1960

Kimberley Research Station : A Progress Report, Department Of Agriculture, Western Australia

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

INTEREST in the agricultural potential of the Kimberley region in Western Australia dates from its early exploration and settlement in the last century.

Several farming development schemes were considered for the area, but were never implemented.

This could be mainly attributable to lack of knowledge of agricultural potentialities, limitations of the local environment and ways of exploiting the local environment.

Up to the present the economy of the region is almost entirely based upon the extensive production of beef and to a lesser extent, wool.


Overcoming Stock Watering Problems In The Kimberleys, B Swan Jan 1960

Overcoming Stock Watering Problems In The Kimberleys, B Swan

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

ONE of the ever-present problems of the pastoral areas is that of providing: watering-points in reasonably close proximity to the grazing areas.

All too frequently, the country on the river frontages and that in the vicinity of the water-holes becomes eaten out and although there may be ample feed on other portions of the run, it is too far distant from the available water to be effectively utilised.


Deferred Grazing : What It May Mean In The Mulga Region, W M. Nunn Jan 1960

Deferred Grazing : What It May Mean In The Mulga Region, W M. Nunn

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

THE practice of deferred grazing has been written up in American textbooks and has been applied effectively to sections of the cattle range lands of the United States.

Early attempts to apply the principle in eastern Australia were not very successful, and it remained for our Departmental workers in the North-West and Kimberley Divisions to demonstrate the phenomenal results that could be obtained on grasslands in summer rainfall areas.


Wild Life In A Modern Age, Clee Francis Howard Jenkins Jan 1960

Wild Life In A Modern Age, Clee Francis Howard Jenkins

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

THE present human population of the earth is estimated at about 2 1/2 thousand million, and reliable sources consider that this figure will be doubled by the year 2000.

Although the pessimistic forecasts of Malthus have not yet come true, it is obvious that the world's food requirements, must lead to increased exploitation of land and other primary resources, with consequent repercussions on all forms of wild life.


Weed Research. 7. Weed Control Around The Yard, Geoffrey A. Pearce Jan 1960

Weed Research. 7. Weed Control Around The Yard, Geoffrey A. Pearce

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

MANY farmers and city householders have weed problems around houses and sheds which can be readily overcome by treatment with appropriate herbicides.

The risk from fire through weeds and unslightly growth can easily be removed and an area free of any plant growth can be maintained with little effort for a considerable period.


Soil Conservation In The Kimberley Area Of Western Australia, K Fitzgerald Jan 1960

Soil Conservation In The Kimberley Area Of Western Australia, K Fitzgerald

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

OFFICERS of the Soil Conservation Branch of the West Australian Department of Agriculture, have not been engaged in soil conservation work in the Kimberleys prior to this year, not because a serious erosion problem did not exist, but rather because with limited trained staff available they were too fully occupied elsewhere.

The recent arrival of a senior Soil Conservation Officer in the area to assist and plan an approach to the problem of soil erosion in the Ord River catchment area is therefore very welcome.


Water Usage Trials With Bananas On The Gascoyne, W M. Nunn Jan 1960

Water Usage Trials With Bananas On The Gascoyne, W M. Nunn

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

THE banana industry at Carnarvon is an unusual one by most agricultural standards.

Normally a tropical plant liking relatively humid conditions in a high rainfall, the banana is cultivated at Carnarvon in an area of extremely low rainfall and with relatively low humidity throughout the year.

Water is pumped to irrigate the crop from the sands of the Gascoyne River bed or from bores adjacent to the river course.


List Of Registered Fertilisers : 1959-60, H G. Cariss Jan 1960

List Of Registered Fertilisers : 1959-60, H G. Cariss

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

TN accordance with the provisions of the Fertilisers Act, 1928-1955, it is required that—with the exception of bulk sales to a manufacturer and those made in accordance with a buyer's written prescription—all fertilisers sold are required to be registered annually, the registration year being from November 1 to October 31 following.

The list of fertilisers registered for the year commencing November 1, 1959, is set out herewith in tabular form.


Facts And Figures For The Man On The Land, J A. Mallett Jan 1960

Facts And Figures For The Man On The Land, J A. Mallett

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

FARM or station life calls for the exercise of so many different skills that the farmer or pastoralist is usually an accomplished handyman.

For those whose schooldays are far behind them however, the most difficult part of many tasks is that of dealing with the calculations involved, and it is hoped that these facts and figures will serve as a handy aid to those whose mathematical ability has not kept pace with their manual and technical skill.


Application Of Palynology To The Study Of Tertiary Rocks Of The Coastal Plain Of Arkansas, Eugene L. Jones Jan 1960

Application Of Palynology To The Study Of Tertiary Rocks Of The Coastal Plain Of Arkansas, Eugene L. Jones

Journal of the Arkansas Academy of Science

No abstract provided.


Test 771: Case 541 (Gasoline), Nebraska Tractor Test Lab Jan 1960

Test 771: Case 541 (Gasoline), Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT

GENERAL CONDITIONS

East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers.

PREPARATION FOR PERFORMANCE RUNS

The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …


Advertising Brochure: International Harvester B-275, Nebraska Tractor Test Lab Jan 1960

Advertising Brochure: International Harvester B-275, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.


Stratigraphy Of The Winnipeg And Deadwood Formations In North Dakota, Clarence G. Carlson Jan 1960

Stratigraphy Of The Winnipeg And Deadwood Formations In North Dakota, Clarence G. Carlson

Theses and Dissertations

The Deadwood formation includes all of the pre-Winnipeg sedimentary rocks of North Dakota which range in thickness from an erosional edge in the subsurface of northeastern North Dakota to at least 1,000 feet in northwestern North Dakota. It is composed of sandstone, shale, and carbonate of Late Cambrian to Early Crdovician age. Facies relationships are not entirely clear, but sedimentation appears to have been continuous from Late Cambrian to Early Crdovician in the Williston Basin. Conodonts from the upper part of the Deadwood formation in northwestern North Dakota are brownish-black, mostly simple cone types and suggest an Early Drdovician age …


The Surficial Geology Of North-Central Kidder County, North Dakota, Wallace E. Bakken Jan 1960

The Surficial Geology Of North-Central Kidder County, North Dakota, Wallace E. Bakken

Theses and Dissertations

Kidder County is situated in central North Dakota within the glaciated Missouri Plateau. Rocks underlying the drift range from Cretaceous (Pierre formation) through Palocene (Tongue River formation) in age. The Pierre and Fox Hills formations constitute the majority of the pre-Pleistocene surface. Ice-shove deformation, apparently during Cary time, tilted blocks of Fox Hills in the Sibley Buttes into northeastward-dipping positions.

Cary and Mankato subages of Wisconsin age are represented at the surface. Ages are difficult to assign to drift sheets on the basis of lithology or degree of weathering of included tills; but by correlation from South Dakota and crosscutting …


An Investigation Of The Bakken And Englewood Formations (Kinderhookian) Of North Dakota And Northwestern South Dakota, Jack Kume Jan 1960

An Investigation Of The Bakken And Englewood Formations (Kinderhookian) Of North Dakota And Northwestern South Dakota, Jack Kume

Theses and Dissertations

Lower Mississippian rocks of the Williston Basin and Black Hills include the Bakken and Englewood formations of Kinderhockian age. The Englewood formation crops out in the northern Black Hills and can be traced with difficulty into the subsurface. The Bakken formation does not crop out in the area out in the area of this study. This study is based upon well sample and mechanical log information and measured surface sections.

The Englewood in the outcrops consists of a lower shale unit, a middle argillaceous and shaly limestone unit, and an upper delomitie limestone unit. A type section, NW, SE; see. …