. Zoology. Zoology. TBE M0NAD8. 13 germs. It has been found that while a fully growa mon- ad, called Dallingeria, maybe destroyed at a temperature of 143" F., the germs or young, which are inconceivably mi- nute,requiringtobe magnified 3000 diameters in order to be seen, perish only when heated in fluid to from 313° P. to 268° P. It would thus appear that no living beings, either plant or animal, are excep- tions to the universal law that all arise from germs. Hence the doctrine of spontaneous generation, which imj)lies that the lower animals may at the present day develop spon- taneously


. Zoology. Zoology. TBE M0NAD8. 13 germs. It has been found that while a fully growa mon- ad, called Dallingeria, maybe destroyed at a temperature of 143" F., the germs or young, which are inconceivably mi- nute,requiringtobe magnified 3000 diameters in order to be seen, perish only when heated in fluid to from 313° P. to 268° P. It would thus appear that no living beings, either plant or animal, are excep- tions to the universal law that all arise from germs. Hence the doctrine of spontaneous generation, which imj)lies that the lower animals may at the present day develop spon- taneously by chcmico-physical action, is not true. Some monads are phospho- rescent. Such is the gigantic monad called Nodiluca (Pig. 9), which occurs in great num-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Packard, A. S. (Alpheus Spring), 1839-1905. N. Y. , Holt


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Keywords: ., bookcentury1800, bookdecade1890, booksubjectzoology, bookyear1897