Colonial and Camp SanitationLongmans, Green, 1903 - 43 páginas |
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Página 2
... dung by preference for ovipositing , and as each female lays about 120 eggs and the cycle of changes from egg to fly is completed in less than three weeks it seems probable that a female fly might have some 25,000,000 descendants in the ...
... dung by preference for ovipositing , and as each female lays about 120 eggs and the cycle of changes from egg to fly is completed in less than three weeks it seems probable that a female fly might have some 25,000,000 descendants in the ...
Página 8
... Horsedung in the same way should be neatly stacked in heaps like hotbeds , protected at the sides and covered with earth . In this way the flies would be prevented from feeding and egg - laying on the dung , 8 SANITATION OF CAMPS.
... Horsedung in the same way should be neatly stacked in heaps like hotbeds , protected at the sides and covered with earth . In this way the flies would be prevented from feeding and egg - laying on the dung , 8 SANITATION OF CAMPS.
Página 9
George Vivian Poore. from feeding and egg - laying on the dung , large quanti- ties of saladings might be produced ... dung every day from our stables , piggeries , cattle - sheds , and poultry - runs , and stacking it carefully so as ...
George Vivian Poore. from feeding and egg - laying on the dung , large quanti- ties of saladings might be produced ... dung every day from our stables , piggeries , cattle - sheds , and poultry - runs , and stacking it carefully so as ...
Página 10
... dung might have been more valuable for fer- tilising purposes . When flies breed in dung - heaps the larvæ eat the dung and leave the straw . If each fly needs one grain only of sustenance then the 25,000,000 which I have stated as the ...
... dung might have been more valuable for fer- tilising purposes . When flies breed in dung - heaps the larvæ eat the dung and leave the straw . If each fly needs one grain only of sustenance then the 25,000,000 which I have stated as the ...
Página 31
... dung of his animals mixed with absorbent material ( generally straw ) , and ultimately places it on the land as a top - dressing , gets nothing but good from it . The practices I advocate are exactly analogous to those which have been ...
... dung of his animals mixed with absorbent material ( generally straw ) , and ultimately places it on the land as a top - dressing , gets nothing but good from it . The practices I advocate are exactly analogous to those which have been ...
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Colonial and Camp Sanitation (Classic Reprint) George Vivian Poore Pré-visualização indisponível - 2018 |
Palavras e frases frequentes
ANALYSIS animals Answers ASTRONOMY B.Sc Book BOTANY BUILDING CONSTRUCTION burial camp CHEMICAL College of Science CONIC SECTIONS cottage cow-houses Crown 8vo D.Sc DAVID ALLAN LOW Diagrams and Illustrations Diseases DRAWING dung E. A. SCHÄFER earth closet Edition ELECTRICITY AND MAGNETISM ELEMENTARY PRACTICAL enteric fever Examination Papers excreta fæces Fellow filter filtration gutter flies FURNEAUX gallons garden GEOMETRY ground HYDROSTATICS HYGIENE Illus inches Institute INTRODUCTION JOHN JOHN GOODMAN JOHN TYNDALL Lecturer LL.D London M.D. Lond Manual Maps material MECHANICS MEDICINE AND SURGERY-Continued Medium 8vo numerous Examples numerous Illustrations organic refuse peat Ph.D PHYSICS PHYSIOGRAPHY PHYSIOLOGY PLANE Professor of Engineering R. A. PROCTOR rain-water Royal 8vo Royal College Salisbury Plain sanitation sawdust scavenging Sir PHILIP MAGNUS slop-water slops soil STEAM strainer STRENGTH OF MATERIALS Students Surgeon Surgical Affections Tacheometry tank Text TEXT-BOOK THEORETICAL THORNTON tions trations Treatment trench TRIGONOMETRY University College urine WILLIAM Woodcuts