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Aging: The Last And Greatest Challenge, Bernard L. Strehler

Henry Ford Hospital Medical Journal

The Edsel B. Ford Memorial Lectures, which are sponsored jointly by the Edsel B. Ford Institute for Medical Research and the Henry Ford Hospital, have been held annually since 1952. The following is an adaptation of Dr. Strehler's lecture before staff doctors and guests, including pathologists, physiologists, biochemists, physicists, biologists and clinicians from Michigan and Ontario.

The Prairie Naturalist Volume 1. No.1. March 1968

The Prairie Naturalist

EDITORIAL: Another Milestone ▪ John T. Lokemoen

NESTING OF THE COMMON SNIPE IN NORTH DAKOTA ▪ Robert E. Stewart and Harold A. Kantrud

SCIENCE WRITING — A PROBLEM ▪ Soren O. Kolstoe

INSECTICIDES: A DOUBLE-EDGED SWORD ▪ Richard D. Urban

NOTES

Why I like the Badlands ▪ Wayne Hecker

White-faced ibis in McIntosh County, North Dakota ▪ Harold F. Duebbert

Cinnamon teal observations in North Dakota ▪ A. T. Klett and John T. Lokemoen

Trumpeter swan in Kidder County, North Dakota ▪ Lewis M. Cowardin and James C. Bartonek

Specimen records of greater scaup ▪ Charles W. Dane and Harold …

Acid Phosphate Activity In Tobacco Mosaic Virus Susceptible And Hypersensitive Varieties Of Burley Tobacco, David J. Saxon

Morehead State Theses and Dissertations

A thesis presented to the faculty of the School of Sciences and Mathematics at Morehead State University in partial fulfillment of the requirements for the Degree of Master of Science in Biology by David J. Saxon on January 23, 1968.

The Systematics Of Sympatric Species In West Indian Spatangoids: A Revision Of The Genera Brissopsis, Plethotaenia, Paleopneustes, And Saviniaster, Richard H. Chesher

Studies in Tropical Oceanography

No abstract provided.

Biological Aspects Of Heat Pollution, Theodore Olson

Journal of the Minnesota Academy of Science

The importance of temperature as an environmental factor has long been recognized by the ecologist, and its special impact upon the aquatic ecosystem has been of interest to aquatic biologists since they first began to observe interactions between living things and the physical environment. Interest in water temperatures as an environmental factor has recently become more widespread; and one aspect of the phenomenon, namely "thermal pollution," has attracted special attention.

Natural Selection In A Leopard Frog Population, David J. Merrell

Journal of the Minnesota Academy of Science

In a population of immature leopard frogs (Rana pipiens) at Mud Lake, Washington County, Minnesota, a high frequency of unilateral deformity of the hind legs was observed in 1965. Metamorphosis from tadpole to frog took place during July, and samples in late July averaged 14.8% deformed frogs. By late September, the frequency of deformed frogs had decreased to 3.6%, presumably as the result of natural selection.

The New Course At Muresk Agricultural College, D K. Bartels

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

THE original aim of all the agricultural colleges in Australia was to train young men to be farmers.

Over the years, and particularly in recent years, the colleges in the Eastern States found that less and less of their students were coming from the farming community, and a diminishing number were returning to farming.

West Midlands Development : Farm Planning, G W. Spencer

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

FARM planning relates to the development and sub-division of a property in such a way that it is possible to obtain the safest, most efficient, and most practical use of every acre of land.

The Certified Strains Of Subterranean Clover : Their Origin, Potential Use And Identification, B J. Quinlivan, C. M. Francis, M. L. Poole

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

SUBTERRANEAN CLOVER originated in the countries surrounding the Mediterranean Sea and in parts of Western Europe.

Therefore it is not surprising that it grows well in the agricultural districts of Western Australia, for these regions have a typically Mediterranean climate with cool wet winters and hot dry summers.

Mastitis In Western Australian Dairy Cattle, Department Of Agriculture, Western Australia

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

IN 1964/65, as a first step towards a State-wide mastitis control programme, the Department of Agriculture undertook a survey of mastitis in West Australian dairy herds.

The survey was designed to obtain a clear picture of the incidence and severity of the disease and is the most comprehensive mastitis survey carried out in Australia.

West Midlands Development : Cereals For The West Midlands, Department Of Agriculture, Western Australia

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

THE sandplain soils and climate of the West Midlands area are primarily suited to grazing.

However, the place of cereals is receiving a great deal of attention in view of their advantages in the early stages of development, and the need for the diversification of farm production.

West Midlands Development : Pastures For Sandplain Soils, Department Of Agriculture, Western Australia

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

TRIALS at the Badgingarra Research Station have indicated that many pasture species will grow in the West Midlands area.

Choice of the species most suited to any particular locality will be influenced by soil type, rainfall, grazing characteristics and possible ill-effects on stock.

The following species have been recommended.

The Phosphorus Fertilisers : How They Compare, Walter Jacob Cox

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

ALTHOUGH 'double' or 'concentrated' superphosphate was first commercially manufactured in 1872 it was not until the 1950's that it became a major commercial fertiliser. In 1965 it accounted for about 15 per cent, of the world production of phosphatic fertilisers.

Wheat In Development Programmes For New Esperance Farmers, R J. Doyle, G. D. Oliver

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

IN the December, 1967, issue of the Journal of Agriculture, we reported on five development budgets for the Esperance region.

The aim of the exercise was to find out if a new settler concentrating on sheep, with $20,000 available for development after acquisition of land, could make a reasonable living for himself and his family while developing his farm.

N-P Compound Fertilisers, M G. Mason, W. J. Cox, R. N. Glencross

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

FARMERS were able to buy the two compound fertilisers N-P Compound Fertiliser 28:14 and N-P Compound Fertilser 24:24 in the 1967 season.

West Midlands Development : Selection Of Areas For Development, J A. Swarts

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

BEFORE commencing any clearing or fencing on a new property it is most important to carefully select those areas which are to be developed first.

West Midlands Development : Development Techniques, Department Of Agriculture, Western Australia

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

Most clearing in the West Midlands is carried out by chaining, though the method chosen will depend on the country being cleared and on the resources of the farmer.

West Midlands Development : Fertilizers For The West Midlands, Department Of Agriculture, Western Australia

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

FARMING the light lands of the West Midland area would be impossible without fertilisers.

Most light land areas are inherently very low in phosphate and also require nitrogen.

The nitrogen can come from fertiliser for cereal crops, or can be built up by growing appropriate legume pasture plants such as clovers and lupins.

West Midlands Development : The Interpretation Of Lands Department Soil Maps Of The West Midlands Area, T C. Stoneman

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

Before most Crown land in the West Midlands area was released, Lands Department survey parties examined and mapped the soils using a soil classification system based on technical advice from the Department of Agriculture.

Concrete In Dairies, D Roger Buchanan

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

PRIME requirements for exposed concrete surfaces in dairies are that they should be easily cleansed and should not deteriorate in contact with milk and milk products.

In milking stalls, animal races and on loading platforms hardwearing surfaces which offer good foothold are also necessary.

Entering The Egg Industry With Laying Cages, W Ward

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

DEPARTMENT of Agriculture Bulletin 3579, "Entering the Egg Industry with Laying Cages", by W. Ward, examines various aspects of the cage system of housing laying hens.

This system is by far the most popular method of housing layers, with 90 per cent, of new farms using cages and many daep litter farms now converting to cages.

Space Requirements For Pullets And Layers On Litter, A H. Lean

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

UNEVEN growth, cannibalism, weakened resistance to disease, unsanitary conditions and poor production commonly arise from failure to provide sufficient floor, feed and watering space for pullets and layers.

New Varieties Top 1967 Yield Tests, H M. Fisher

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

LARGE gains can result from using improved cereal varieties and in recent years activity in breeding varieties adapted to local conditions has increased.

The varieties available and their suitability for different areas and conditions need constant review.

Ecological Study Of The Effects Of Strip Mining On The Microbiology Of Streams, Ralph H. Weaver, Harry D. Nash

KWRRI Research Reports

The microflora of Cane Branch of Beaver Creek in McCreary County, Kentucky, which drains an area that was strip-mined between 1955 and 1959, was studied and compared with that of Helton Branch which drains a comparable area where there has been no mining. Differences include: the establishment of Ferrcbacillus ferrooxidans, for which procedures were developed for direct colony isolation from the stream; fewer saprophytic bacteria; more numerous and more diversified filamentous and unicellular fungi; and characteristic differences in algal flora. Representatives of 42 genera of filamentous fungi were identified. Of these, 21 were isolated only from Cane Branch. Representatives of …

Worms In Sheep. 4. Drenches For Treatment And Control Of Worms In Sheep, W A. Halhead

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

PREVIOUS articles in this series have described the species of worms affecting sheep in Western Australia, their life histories and the factors which lead to the seasonal rise and fall in worm burdens.

A programme of strategic (preventative) drenching has been outlined which is based on a knowledge of these seasonal changes in worm burdens.

Bulletin No 3547 - Kimberley Research Station - Progress Report 1968, Western Australian Department Of Agriculture

Bulletins - 3000 - 3999

Rivers flowing to the Gulf of Carpentaria and the Timor Sea have been estimated by hydrologists to carry about three times the water transported annually over the Murray drainage system and the South Eastern slopes which, together, comprise the highly settled agricultural areas of South Eastern Australia.

In 1945, the North Australian Development Committee recommended research in the Ord-Victoria rivers region as a first step toward ultimate agricultural development of this Northern potential and, in 1946, the Kim- berley Research Station commenced operations under the joint control of the Commonwealth Scientific and Industrial Research Organization and the Western Australian Department …

A Descriptive Model Of The Sweet Corn And Pea Processing Industry Of Southern Minnesota, David P. Brennan

All Graduate Theses, Dissertations, and Other Capstone Projects

This research project was initiated to construct and test a model of the sweet corn and pea processing industry of Minnesota. The model is a composite abstract consisting of several basic theories of general application and several hypotheses which were formulated to consider the unique properties associated with sweet corn and pea processing. These are related to the agricultural and industrial factors which are inseparable parts of sweet corn and pea processing. Testing the model concerned the evaluation of the theories and hypotheses with regard to the real life situation. The basic concepts used in the model were refined and …

Schistosome Dermatitis At Basswood Lake, Minnesota, James A. Zischke, Deloris Palmquist Zischke

Journal of the Minnesota Academy of Science

During the summer of 1965 cases of schistosome dermatitis were reported at the Associated Colleges of the Midwest Wilderness Field, Station on Basswood Lake, Minnesota. Collection and isolation of gastropods from the lake revealed an extremely high incidence of Trichobilharzia ocellata infections in Lymnaea stagnalis. A flock of semi-domestic mallard ducks first introduced al the lake in 1963 are believed to be the principal definitive hosts contributing to the epidemiology of the parasite in the area.

The Function And Use Of Sulphur Dioxide In West Australian Winemaking, D Mann

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

THE judicious use of sulphur dioxide is perhaps the most important of the fundamentals of winemaking in a hot climate.

Western Australia's vintage, centred in the Swan Valley just a few miles north-east of Perth, is subjected to some of the highest summer temperatures experienced by a quality wine producing district.

In this environment, it is important to make good use of sulphur dioxide to avoid wine spoilage.

A Survey Of Stone Fruit Plantings In Western Australia, Department Of Agriculture, Western Australia

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

This article presents the results of a survey of commercial stone fruit plantings in Western Australia, carried out by officers of the Department of Agriculture during 1966.

The main purpose of the survey was to provide varietal and other statistics not previously available in this State.

The results also give useful indications of future trends in the industry.