. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. L. A VP B FIGURE 1. A. Diagram of medial sagittal section of a Stage 10 gastrula. Stippled areas show positions from which dorsal (D) and ventral (V) explants were taken. B. Dorsal view of Stage 10 gastrula, showing how dorsal explant is cut into left (D,L) and right (D,R) parts. The ventral explant is similarly treated. Other abbreviations : AP = animal pole ; VP = vegetal pole; L =• dorsal lip. Using the same divers, anaerobic carbon dioxide production (OanCO2: p\ carbon dioxide produced/mg. dry weight of tissue/hour at 22
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. L. A VP B FIGURE 1. A. Diagram of medial sagittal section of a Stage 10 gastrula. Stippled areas show positions from which dorsal (D) and ventral (V) explants were taken. B. Dorsal view of Stage 10 gastrula, showing how dorsal explant is cut into left (D,L) and right (D,R) parts. The ventral explant is similarly treated. Other abbreviations : AP = animal pole ; VP = vegetal pole; L =• dorsal lip. Using the same divers, anaerobic carbon dioxide production (OanCO2: p\ carbon dioxide produced/mg. dry weight of tissue/hour at 22° C.) was meas- ured by a method essentially that of Boell, Needham and Rogers (1939). Each diver contained: Two explants of the same class Medium for explants ( M bicarbonate in full-strength Holtfreter's solution) : /A! Oil seal: (A Mouth seal: /*! Anaerobiosis was insured by the following procedure. After introducing ex- plants into a diver (see below) it was mounted in such a way that it was held up- right in a spring clamp with its mouth about two centimeters below the surface of some 95% flotation medium (without taurocholate) contained in a glass cylinder mounted on a vertically-moving rack and pinion (Fig. 2). A stream of gas (95 parts N2: 5 parts CO2, previously de-oxygenated over hot copper and washed with water) was then led into the diver with a capillary pipette (as shown) for at least one minute. The diver was then moved along to a second pipette which was used to. 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 Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report 1907/08-1952; Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-1983. Woods Hole, Mass. : Marine Biological
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
