The Physical Basis of SocietyD. Appleton, 1916 - 406 من الصفحات |
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الصفحة 61
... female . The garden plants , the date bearers , were females ; the desert plants were males ; and the waving of the branches over the females meant the transference of the fertilizing pollen dust from the one to the other . " 7 6 ...
... female . The garden plants , the date bearers , were females ; the desert plants were males ; and the waving of the branches over the females meant the transference of the fertilizing pollen dust from the one to the other . " 7 6 ...
الصفحة 89
... a joke , though I am told that the canny inspectors are careful to miss enough nests to make sure of their jobs the next season . About the first of August the wingless female gypsy moth crawls to some sheltered spot on MUTUAL AID 89.
... a joke , though I am told that the canny inspectors are careful to miss enough nests to make sure of their jobs the next season . About the first of August the wingless female gypsy moth crawls to some sheltered spot on MUTUAL AID 89.
الصفحة 90
... female lays her eggs on some leaf . These hatch in a few days and feeding begins . Then a winter nest is made of leaves which remain decorating the tips of the branches till spring . From scattered spots on the Maine coast down to Fall ...
... female lays her eggs on some leaf . These hatch in a few days and feeding begins . Then a winter nest is made of leaves which remain decorating the tips of the branches till spring . From scattered spots on the Maine coast down to Fall ...
الصفحة 135
... female stegomyia mosquito . We now know that this mosquito must bite a fever - stricken patient within the first three days of his illness . Then for some twelve days the germ incubates in the body of the mosquito and may thereafter be ...
... female stegomyia mosquito . We now know that this mosquito must bite a fever - stricken patient within the first three days of his illness . Then for some twelve days the germ incubates in the body of the mosquito and may thereafter be ...
الصفحة 136
... causes ma- laria , and in 1898 an English physician , Dr. Ronald Read , discovered that this organism must pass part of its life in a female mosquito of the Anopheles species and by it 136 THE PHYSICAL BASIS OF SOCIETY.
... causes ma- laria , and in 1898 an English physician , Dr. Ronald Read , discovered that this organism must pass part of its life in a female mosquito of the Anopheles species and by it 136 THE PHYSICAL BASIS OF SOCIETY.
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