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Articles 42841 - 42870 of 43064

Full-Text Articles in Physical Sciences and Mathematics

Sunrise And Sunset Times For May-June 1952 Mar 1953

Sunrise And Sunset Times For May-June 1952

Journal of the Department of Agriculture, Western Australia, Series 3

Supplied by the Government Astronomer

Times of sunrise and sunset for every fifth day, are given for a number of towns throughout the State. Times for a town not on the list may be estimated if its position in relation to one or more of the listed towns is known. The times given for sunrise are those of the first appearance of the top edge of the sun over a true horizon; those for sunset give the time of the sun's disappearance below a true horizon. Situation in a valley would make the sun appear to rise later, and on …


Sunrise And Sunset Times For March-April, 1953 Jan 1953

Sunrise And Sunset Times For March-April, 1953

Journal of the Department of Agriculture, Western Australia, Series 3

State. Times for a town not on the list may be estimated if its position in relation to one or more of the listed towns is known. The times given for sunrise are those of the first appearance of the top edge of the sun over a true horizon; those for sunset give the time of the sun's disappearance below a true horizon. Situation in a valley would make the sun appear to rise later, and on a hill it would appear earlier.

[Supplied by the Government Astronomer]


Ionic Exchange In Soils: I. Measurement Of The Exchange Reaction By Means Of An Ion Exchange, D. A. Brown Jan 1953

Ionic Exchange In Soils: I. Measurement Of The Exchange Reaction By Means Of An Ion Exchange, D. A. Brown

Journal of the Arkansas Academy of Science

No abstract provided.


Ceramic Uses Of Arkansas Nepheline Syenite, Harry J. Reynolds Jan 1953

Ceramic Uses Of Arkansas Nepheline Syenite, Harry J. Reynolds

Journal of the Arkansas Academy of Science

No abstract provided.


Comments On The Bacillariophycaea Of North Central Arkansas, Albert Robinson Jr. Jan 1953

Comments On The Bacillariophycaea Of North Central Arkansas, Albert Robinson Jr.

Journal of the Arkansas Academy of Science

No abstract provided.


Apparatus For The Measurement Of Atmospheric Attenuation Of Light, John E. Lyon, Robert D. Woosley Jan 1953

Apparatus For The Measurement Of Atmospheric Attenuation Of Light, John E. Lyon, Robert D. Woosley

Journal of the Arkansas Academy of Science

No abstract provided.


On Arkansas Microndrili, David Causey Jan 1953

On Arkansas Microndrili, David Causey

Journal of the Arkansas Academy of Science

No abstract provided.


Wind Erosion Control—I, D J. Fleay Jan 1953

Wind Erosion Control—I, D J. Fleay

Journal of the Department of Agriculture, Western Australia, Series 3

Desserts have been formed in some parts of the world by the action of wind on once productive soils. This could happen to the light land areas of Western Australia if we do not profit by the lessons of the past and manage these soils with great care.


The Regeneration And Maintenance Of Wimmera Ryegrass Pastures Under Saline Soil Condition, F L. Shier Nov 1952

The Regeneration And Maintenance Of Wimmera Ryegrass Pastures Under Saline Soil Condition, F L. Shier

Journal of the Department of Agriculture, Western Australia, Series 3

Over the past ten years, Wimmera ryegrass pastures at the Salmon Gums Re- VJ search Station have been improved and maintained by periodic cultivation of the soil even without applications of superphosphate. On heavy crab-holey soil affected by high salt content and unsatisfactory for wheat growing, cultivation treatments have produced remarkably uniform stands of Wimmera ryegrass as shown in the accompanying pictures. The bare patches due to salt, have been largely eliminated. If the interval between cultivations is more than three years Wimmera pastures deteriorate badly.


Sunrise And Sunset Tables Times For Jan.-Feb., 1953 Nov 1952

Sunrise And Sunset Tables Times For Jan.-Feb., 1953

Journal of the Department of Agriculture, Western Australia, Series 3

Times of sunrise and sunset for every fifth day, are given for a number of towns throughout the State. Times for a town not on the list may be estimated if its position in relation to one or more of the listed towns is known. The times given for sunrise are those of the first appearance of the top edge of the sun over a true horizon; those for sunset give the time of the sun's disappearance below a true horizon. Situation in a valley would make the sun appear to rise later, and on a hill it would appear …


Soil Conservation Service - Basis Of Co-Operation, G H. Burvill Nov 1952

Soil Conservation Service - Basis Of Co-Operation, G H. Burvill

Journal of the Department of Agriculture, Western Australia, Series 3

The Soil Conservation Service has been established as provided in the Soil Conservation Act, 1945. To carry out its objectives will require the co-operation with it of individual farmers and landholders. The policy of the Service is therefore to encourage farmers to help themselves, and particularly to encourage them to recognise the need for soil conservation methods and for soil erosion control in the early stages. More particularly, the Service aims to provide, through its trained staff, technical asistance in the way of agricultural advice, research, conservation, planning, layouts and surveys. As indicated below, under the heading "Charges for Soil …


Soil-Saving Schools Sep 1952

Soil-Saving Schools

Journal of the Department of Agriculture, Western Australia, Series 3

Save the soil for your sons and grandsons," or "Every farmer his own soil conservationist" might well serve as slogans for the recently-inaugurated farmers' schools organised in this State by the Soil Conservation Service. Judging by the enthusiasm shown by pupils at the first two schools, held in August last, this highly practical approach to an important subject seems destined to usher in an entirely new conception of soil conservation work as it affects the individual land-owner.


Sunrise And Sunset Tables Sep 1952

Sunrise And Sunset Tables

Journal of the Department of Agriculture, Western Australia, Series 3

Times of sunrise and sunset for every fifth day, are given for a number of towns throughout the State. Times for a town not on the list may be estimated if its position in relation to one or more of the listed towns is known. The times given for sunrise are those of the first appearance of the top edge of the sun over a true horizon; those for sunset give the time of the sun's disappearance below a true horizon. Situation in a valley would make the sun appear to rise later, and on a hill it would appear …


The Hose U-Tube Level, J P. Fallon Sep 1952

The Hose U-Tube Level, J P. Fallon

Journal of the Department of Agriculture, Western Australia, Series 3

With the growing use of soil conservation practices throughout the farming areas, there has been an increasing demand for a simple levelling device that will enable farmers to take their own levels. When they have become familiar with the use of pasture furrows, contour banks and the various other mechanical erosion control measures, farmers with the aid of such an instrument would be able to make an immediate start on an erosion control programme. The instrument would also prove useful for numerous small jobs around the farm when accurate levels are required. Tests have shown the "Hose U-Tube Level" here …


Soil Conservation Farming. List Of Farmers Who Are Using Contour Practices Jul 1952

Soil Conservation Farming. List Of Farmers Who Are Using Contour Practices

Journal of the Department of Agriculture, Western Australia, Series 3

A list of farmers known to be using contour practices for soil conservation, is printed at the end of this note. It will enable other interested farmers to find and see something of such methods. Now is considered an appropriate time to publish this list as many farmers will shortly be travelling through the countryside to agricultural shows and field days.


Sunrise And Sunset Times For Sept.-Oct., 1952 Jul 1952

Sunrise And Sunset Times For Sept.-Oct., 1952

Journal of the Department of Agriculture, Western Australia, Series 3

Times of sunrise and sunset for every fifth day, are given for a number of towns throughout the State. Times for a town not on the list may be estimated if its position in relation to one or more of the listed towns is known. The times given for sunrise are those of the first appearance of the top edge of the sun over a true horizon; those for sunset give the time of the sun s disappearance below a true horizon. Situation in a valley would make the sun appear to rise later, and on a hill it would …


The Character Of Minnesota Well Waters, With Special Emphasis On The St. Cloud Region And Stearns County, Matthew A. Kiess May 1952

The Character Of Minnesota Well Waters, With Special Emphasis On The St. Cloud Region And Stearns County, Matthew A. Kiess

Journal of the Minnesota Academy of Science

No abstract provided.


Use Of P32, Sr89, And Ca45 In Mechanical Dishwashing Studies, A. T. Martin, C. H. Shiflett, J. L. Wilson May 1952

Use Of P32, Sr89, And Ca45 In Mechanical Dishwashing Studies, A. T. Martin, C. H. Shiflett, J. L. Wilson

Journal of the Minnesota Academy of Science

No abstract provided.


Dams On The Hillsides May 1952

Dams On The Hillsides

Journal of the Department of Agriculture, Western Australia, Series 3

A reader of the "Journal of Agriculture" recently wrote to the Commissioner of Soil Conservation concerning the current tendency towards sinking dams on hillsides. He stated that many farmers and contractors were throwing up holding banks in such a manner that a large percentage of the water impounded was lost by seepage under the banks.


Sunrise And Sunset Times For July - Aug., 1952 May 1952

Sunrise And Sunset Times For July - Aug., 1952

Journal of the Department of Agriculture, Western Australia, Series 3

(Supplied by the Government Astronomer)

Times of sunrise and sunset for every fifth day, are given for a number of towns throughout the State. Times for a town not on the list may be estimated if its position in relation to one or more of the listed towns is known. The times given for sunrise are those of the first appearance of the top edge of the sun over a true horizon; those for sunset give the time of the sun's disappearance below a true horizon. Situation in a valley would make the sun appear to rise later, and on …


Chemical Magic Experiments, Leonard A. Ford May 1952

Chemical Magic Experiments, Leonard A. Ford

Journal of the Minnesota Academy of Science

No abstract provided.


Water Erosion Control, L C. Lightfoot Mar 1952

Water Erosion Control, L C. Lightfoot

Journal of the Department of Agriculture, Western Australia, Series 3

Although soil erosion caused by water action is common in our agricultural areas, effective erosion control measures, likely to pay for themselves quickly, can be applied in nearly every case. Plant cover above the soil surface, and fertile soil with good structures are the main factors which enable soils to resist erosion. Dense pasture gives the best cover and at the same time improves the fertility and structure of the soil both effectively and economically, so land management adjusted to the need and capability of soils, slopes and climate is of first importance. Contour practices are of secondary value and …


Sunrise And Sunset Times For May-June, 1952 Mar 1952

Sunrise And Sunset Times For May-June, 1952

Journal of the Department of Agriculture, Western Australia, Series 3

Times of sunrise and sunset for every fifth day, are given for a number of towns throughout the State. Times for a town not on the list may be estimated if its position in relation to one or more of the listed towns is known. The times given for sunrise are those of the first appearance of the top edge of the sun over a true horizon; those for sunset give the time of the sun's disappearance below a true horizon. Situation in a valley would make the sun appear to rise later, and on a hill it would appear …


X-Ray Investigations Of Arkansas Graphites, John A. Doughty Jan 1952

X-Ray Investigations Of Arkansas Graphites, John A. Doughty

Journal of the Arkansas Academy of Science

No abstract provided.


What Is A Riemmian Manifold?, Frederick Griffin Jan 1952

What Is A Riemmian Manifold?, Frederick Griffin

Journal of the Arkansas Academy of Science

No abstract provided.


Limnological Studies In Arkansas. Ii. The Effect Of Intense Rainfall On The Abundance And Vertical Distribution Of Plankton In Lake Fort Smith, Arkansas, Carl E. Hoffman Jan 1952

Limnological Studies In Arkansas. Ii. The Effect Of Intense Rainfall On The Abundance And Vertical Distribution Of Plankton In Lake Fort Smith, Arkansas, Carl E. Hoffman

Journal of the Arkansas Academy of Science

No abstract provided.


Limnological Studies In Arkansas. I. Physico-Chemical And Net Plankton Studies Of Lake Fort Smith In Its Fourth Year Of Impoundment, Carl E. Hoffman, David Causey Jan 1952

Limnological Studies In Arkansas. I. Physico-Chemical And Net Plankton Studies Of Lake Fort Smith In Its Fourth Year Of Impoundment, Carl E. Hoffman, David Causey

Journal of the Arkansas Academy of Science

No abstract provided.


Sunrise And Sunset Times For March-April 1952 Jan 1952

Sunrise And Sunset Times For March-April 1952

Journal of the Department of Agriculture, Western Australia, Series 3

Times of sunrise and sunset for every fifth day, are given for a number of towns throughout the State. Times for a town not on the list may be estimated if its position in relation to one or more of the listed towns is known. The times given for sunrise are those of the first appearance of the top edge of the sun over a true horizon; those for sunset give the time of the sun's disappearance below a true horizon. Situation in a valley would make the sun appear to rise later, and on a hill it would appear …


Kimberley Soils Need Phosphates, W. M. Nunn Jan 1952

Kimberley Soils Need Phosphates, W. M. Nunn

Journal of the Department of Agriculture, Western Australia, Series 3

Research work carried out at the Kimberley Research Station on the Ord River, and on experimental plots throughout the East and West Kimberleys, indicates that the soils of the Kimberleys are quite as deficient in phosphorus as are the soils of our agricultural areas where superphosphate is essential to the growth of most crops.

This may come as a surprise to many people, for there has been a widespread tendency to assume that the Kimberleys soils, especially those of the Ord and Fitzroy valleys, are highly fertile.

The black earths of Queensland's Darling Downs produce most enviable yields of sorghum …


Soil Conservation In Western Australia, G. H. Burvill Jan 1952

Soil Conservation In Western Australia, G. H. Burvill

Journal of the Department of Agriculture, Western Australia, Series 3

Soil is a farmer's basic asset. This issue of "The Journal of Agriculture" in a new form designed to provide still better service to the farming community, is an appropriate medium through which to remind the man on the land of what the soil means to him—and to the State. The farmer's duties to himself, his family and the State are summed up in the words "soil conservation" which is merely another way of saying "wise land use."