. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 92 T. VON BRAND, P. McMAHON AND M. O. NOLAN results. The shape of the curve indicates that no fixed relationship between time of survival and relative humidity exists, but that decreasing humidity leads progres- sively to an ever more accelerated death rate. Survival during starvation in water was only about half as long as during desiccation over water (96 per cent relative. DAYS ID I UJ 01 100 80 60 40 20 0 *. Starvingin Water • Desiccation at 96% Relative Humidity A Desiccation at 85 % Relative Humidity Q Desiccation at 7
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 92 T. VON BRAND, P. McMAHON AND M. O. NOLAN results. The shape of the curve indicates that no fixed relationship between time of survival and relative humidity exists, but that decreasing humidity leads progres- sively to an ever more accelerated death rate. Survival during starvation in water was only about half as long as during desiccation over water (96 per cent relative. DAYS ID I UJ 01 100 80 60 40 20 0 *. Starvingin Water • Desiccation at 96% Relative Humidity A Desiccation at 85 % Relative Humidity Q Desiccation at 74% Relative Humidity a Desiccation at 57% Relative Humidity m Desiccation at 30%Relative Humidity (^Desiccation at 15% Relative Humidity I I I I 2 4 8 16 32 64 128 DAYS REQUIRED TO LOSE 25% OFWEIGHT FIGURE 2. Weight relationships of Australorbis glabratus starving in water or desiccating at various relative humidities. humidity). However, the 50 per cent death points of these two series were closer together. This is due to the fact that the first deaths due solely to starvation oc- curred later than those from the combined influences of starvation and desiccation. 2. Weight loss. Thirty fed control snails averaged per cent dry substance. The shells of 30 other controls, after the soft parts had been removed according to Nolan and von Brand's (1954) procedure averaged per cent of the total. 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 Laboratory
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