. Chemical embryology. Embryology. SECT. 4j HEAT-PRODUCTION OF THE EMBRYO 711 are used, but does if the eggs are fertile and developing properly. Other factors which may increase it are the respiration of the hen and the evolution of carbon dioxide from the soil. It never reached a toxic concentration, however, although usually well above the ordinary air of the room. 400 300 CO2 production chick embryo O Bohr & Hasselbalch^ (l^''-series) ( / , \ ^ ^ >(race unknown) ® Bohr 8( Hasselbalch (^ ' (2"'^-series) j • Abwood &.Weakley.(White leghorn) ® Murray ( » " ) e Hanan © Bau
. Chemical embryology. Embryology. SECT. 4j HEAT-PRODUCTION OF THE EMBRYO 711 are used, but does if the eggs are fertile and developing properly. Other factors which may increase it are the respiration of the hen and the evolution of carbon dioxide from the soil. It never reached a toxic concentration, however, although usually well above the ordinary air of the room. 400 300 CO2 production chick embryo O Bohr & Hasselbalch^ (l^''-series) ( / , \ ^ ^ >(race unknown) ® Bohr 8( Hasselbalch (^ ' (2"'^-series) j • Abwood &.Weakley.(White leghorn) ® Murray ( » " ) e Hanan © Baumgarbner 200 100. 3 9 10 11 12 13 14 15 16 17 18 19 Fig. 151. Uncertainty about the action of carbon dioxide on development, whether good or bad, had previously led to a good deal of work designed to discover what proportion of the gas in the circulating air gave the best results. Lourdel; Brigham; Thom and Lamson & Kirkpatrick advocated the addition of carbon dioxide to the air, and Dryden; Edmond and Harcourt & Graham considered that N E II 46. 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 Needham, Joseph, 1900-. New York: The MacMillan Co.
Size: 1498px × 1667px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookpublishernewyorkthem, booksubjectembryology
