The Physical Basis of SocietyD. Appleton, 1916 - 406 من الصفحات |
من داخل الكتاب
النتائج 1-5 من 7
الصفحة 127
... smallpox . Experiment proved this to be true . Now with the elimination of cruelty and needless suffering investigators the world over are trying experiments upon lowly forms of life to see if in some way control may be gained of the ...
... smallpox . Experiment proved this to be true . Now with the elimination of cruelty and needless suffering investigators the world over are trying experiments upon lowly forms of life to see if in some way control may be gained of the ...
الصفحة 130
... smallpox , but the milder cowpox gives almost complete immunity . In other cases we use the self - created poisons above mentioned ( called antitoxins ) and , by injecting these into the system , as in diphtheria , destroy the disease ...
... smallpox , but the milder cowpox gives almost complete immunity . In other cases we use the self - created poisons above mentioned ( called antitoxins ) and , by injecting these into the system , as in diphtheria , destroy the disease ...
الصفحة 132
... smallpox . Two hundred years ago about one - tenth of our ancestors died of this disease and " a pox upon you was one of the common curses . It is estimated that from 80 per cent to 90 per cent of the population had smallpox at some ...
... smallpox . Two hundred years ago about one - tenth of our ancestors died of this disease and " a pox upon you was one of the common curses . It is estimated that from 80 per cent to 90 per cent of the population had smallpox at some ...
الصفحة 133
... smallpox , but not one of these had been successfully vac- cinated within ten years . It is not too much to say then that smallpox is vanquished if man so chooses . The finan- cial gain can be seen from the estimate that the epidemic of ...
... smallpox , but not one of these had been successfully vac- cinated within ten years . It is not too much to say then that smallpox is vanquished if man so chooses . The finan- cial gain can be seen from the estimate that the epidemic of ...
الصفحة 216
... smallpox , but the skin of the children later born is smooth . The broken arm , the amputated leg , the scar of the wound or burn are equally without result . Sup- pose , however , that a similar condition affected many con- secutive ...
... smallpox , but the skin of the children later born is smooth . The broken arm , the amputated leg , the scar of the wound or burn are equally without result . Sup- pose , however , that a similar condition affected many con- secutive ...
طبعات أخرى - عرض جميع المقتطفات
عبارات ومصطلحات مألوفة
acre Africa America appeared Asia average bacteria beetles believe birds body breeding carbon carbon dioxid carnivora cattle cause cent century changes characters chromosomes civilization climate color considered crops cultivated Darwin death destroyed discovered discoveries disease early earth eggs elements elm-leaf beetle environment Europe European evidence evolution existence fact favorable feeble-minded female fish forms germ cells groups growth hence heredity Hessian fly human Ibid important Inasmuch inches increase individuals influence inheritance insects Kallikak Family killed known Lamarck large numbers larvæ less living lower malaria male man's mated natural selection nature normal organisms ovum oxygen parents physical plants and animals population possible produced race reason seeds smallpox social society soil species square mile substances survive temperature theory thought tion trees tropics tuberculosis United women yellow yellow fever