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The elements of embryology. Chickens -- Embryos. IT.] THE ALIMENTARY CAXAL. Gl Fig. 15.. a.o Embryo of the Chick at 36 hours viewed from above as an opaque object. (Chromic acid

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Advanced biology. Biology; Physiology; Reproduction. CHAPTER II THE GROWTH OF SCIENCE. Aristotle, Father of Biology. Hippocrates, Father of Medicine. What changes have taken place in science? What is science? Into what

Biological lectures delivered at the Marine Biological Laboratory of Wood's Holl [sic]. Biology. THE RELATIONSHIPS OF THE SEA-SPIDERS. 143 At the anterior end of the body we see the large for

Plants; a text-book of botany. Botany. 86 PLANT STEUCTUEES the food which they manufacture. The less chlorophyll is used the less is it developed, and a green plant which is obtaining

Biological lectures delivered at the Marine Biological Laboratory of Wood's Holl [sic]. Biology. THE RELATIONSHIPS OF THE SEA-SPIDERS. 143 At the anterior end of the body we see the large for