Draining for Profit, and Draining for HealthJudd, 1911 - 252 páginas |
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Página 46
... economical plan for draining any ordinary agricultural land , to stake the lines , and to determine the grade of the drains , and the sizes of tile with which they should be furnished . 16 On this subject Mr. Gisborne says : " If 46.
... economical plan for draining any ordinary agricultural land , to stake the lines , and to determine the grade of the drains , and the sizes of tile with which they should be furnished . 16 On this subject Mr. Gisborne says : " If 46.
Página 49
... stake off the field into squares of 50 feet , by first running a base line through the center of the greatest length of the field , marking it with stakes at intervals of 50 feet , then stake other lines , also at intervals of 50 feet ...
... stake off the field into squares of 50 feet , by first running a base line through the center of the greatest length of the field , marking it with stakes at intervals of 50 feet , then stake other lines , also at intervals of 50 feet ...
Página 52
... stake , and , as the height of the instrument Fig . 6. - LEVELLING INSTRUMENT . * above the imaginary plane has been reached , by subtract ing one elevation from the other , the operator determines the height of the ground at that stake ...
... stake , and , as the height of the instrument Fig . 6. - LEVELLING INSTRUMENT . * above the imaginary plane has been reached , by subtract ing one elevation from the other , the operator determines the height of the ground at that stake ...
Página 53
... stakes from the southern boundary to be 1.9 , 3.3 , and 5.1 . The contour lines , representing points of elevation of 2 , 3 , 4 , and 5 feet above the datum line , will cross the 50 - foot lines at their intersections , only where these ...
... stakes from the southern boundary to be 1.9 , 3.3 , and 5.1 . The contour lines , representing points of elevation of 2 , 3 , 4 , and 5 feet above the datum line , will cross the 50 - foot lines at their intersections , only where these ...
Página 55
... stakes , we can denote on the map the shape and depth of sunken rocks . The shaded spot on the east side of the map , ( Fig . 8 , ) indicates a rock three feet from the surface , which will be assumed to have been explored by sounding ...
... stakes , we can denote on the map the shape and depth of sunken rocks . The shaded spot on the east side of the map , ( Fig . 8 , ) indicates a rock three feet from the surface , which will be assumed to have been explored by sounding ...
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Draining for Profit, and Draining for Health George E 1833-1898 Waring Sin vista previa disponible - 2015 |
Términos y frases comunes
acre agricultural amount basin bottom brick bushels carried cause cents chapter clay collars commenced condition connection considerable contour lines cost course covered crop cultivation deposit depth discharge diseases distance ditch drainage dyke earth effect evaporation fall farm farmer feet deep fever fiber crops field fifth column filled flow foot four feet Gisborne grade ground Hackensack River heat heavy rain houses improvement inches joints kiln labor laid land laying length less lower main drain malarious manure marsh matters moisture muddy water nearly necessary obstruction operation outlet particles pipes placed plants plow porous practice prevent quantity rain-fall removed result roots salt marsh saturated season sewage sewers shown in Fig side silt silt-basin slope soakage spring stakes steepest descent stone subsoil sufficient surface tide tile tile-draining tion typhoid fever undrained upper end vegetable whole width
Pasajes populares
Página 252 - A practical guide for beginners and a standard reference of great interest to persons already engaged in celery growing. It contains many illustrations giving a clear conception of the practical side of celery culture. The work is complete in every detail, from sowing a few seeds in a window-box in the house for early plants, to the handling and marketing of celery in carload lots. Fully illustrated. 150 pages. 5x7 inches. Cloth $0.50 Tomato Culture By WILL W. TRACY. The author has rounded up in...
Página 34 - Such were the effects at an early period of the year on a black bog. They suggest some idea of what they are, when in July or August thunder-rain at 60° or 70° falls on a surface heated to 130°, and carries down with it into the greedy fissures of the earth its augmented temperature. These advantages porous soils possess by nature, and retentive soils only acquire them by drainage.
Página 252 - It includes the manner of growth, soils and fertilizers adapted, best varieties, seed selection and breeding, planting, harvesting, insects and fungous pests, composition and feeding value; with a special chapter on markets by Albert W. Fulton. A practical book for the grower and student alike. Illustrated. 144 pages. 5x7 inches. Cloth $0.50 Celery Culture By WR BEATTIE. A practical guide for beginners and a standard reference of great interest to persons already engaged in celery growing. It contains...
Página 65 - ... other. The obvious remedy is to destroy their united action ; to break through their line of communication. Remove your water of attraction to such a depth that evaporation cannot act upon it, or but feebly. What is that depth ? In ascertaining this point we are not altogether without data. No doubt depth diminishes the power of evaporation rapidly. Still, as water taken from a...
Página 252 - ... the handling and marketing of celery in carload lots. Fully illustrated. 150 pages. 5x7 inches. Cloth $0.50 Tomato Culture By WILL W. TRACY. The author has rounded up in this book the most complete account of tomato culture in all its phases that has ever been gotten together. It is no...
Página 66 - A farmer manures a field of four or five inches of free soil reposing on a retentive clay, and sows it with wheat. It comes up, and between the kernel and the manure it looks well for a time, but anon it sickens. An Irish child looks well for five or six years, but after that time potato-feeding, and filth, and hardship begin to tell. You ask what is amiss with the wheat, and you are told that when its roots reach the clay they are poisoned.