. Carnegie Institution of Washington publication. 68 Papers from the Marine Biological Laboratory at Tortugas. laboratory, at temperatures ranging from ° to ° C, from June 19 to July II, 1911, at Tortugas, Florida. The medusae were kept in a 6-liter glass aquarium, the water being changed once in each 24 hours. Table Days elapsed. Observed weight in grams. Calculated, Days elapsed. Observed weight in grams. Calculated weight.' i â â - Days elapsed. Observed weight in grams. Calculated 0 I 2 3 4 S 6 7 457 365-5 345 497 421.
. Carnegie Institution of Washington publication. 68 Papers from the Marine Biological Laboratory at Tortugas. laboratory, at temperatures ranging from ° to ° C, from June 19 to July II, 1911, at Tortugas, Florida. The medusae were kept in a 6-liter glass aquarium, the water being changed once in each 24 hours. Table Days elapsed. Observed weight in grams. Calculated, Days elapsed. Observed weight in grams. Calculated weight.' i â â - Days elapsed. Observed weight in grams. Calculated 0 I 2 3 4 S 6 7 457 365-5 345 497 399-59 339-45 8 9 10 II 12 13 14 IS 328 31S 306 219-67 16 17 i8 19 20 21 22 1 â¢According to formula y_ = 497(1 â )*. Remarks.âFree-swimming algal cells were given off from these medusae every morning soon after day- light for the first week. These plant-cells collected on the side of the cylindrical glass aquarium which was away from the light. 11 medusae of Cassiopea starved 22 days in diffuse day-light. s s O 200* 100 {â â¢^"'-'..-. ^S9j-t 0 12 3 4 5 6 7 9 10 11 12 13 14 15 16 17 18 19 20 21 22 Days X Diagram illustrating Table 7. Table 8 shows the decline in weight of a single normal medusa of Cassi- opea xamachana starved 17 days in the diffuse daylight of the laboratory in filtered sea-water at temperatures ranging from ° to ° C, from June 22 to July 9, 1911, at Tortugas, Florida. The medusa was kept in a 6-liter glass aquarium, the water being changed once in each 24 hours. Table 8. i; Days elapsed. 0 I 2 3 4 S 6 7 8 9 Observed weight in grams. 231-5 Calculated Days weight.' elapsed. 262 10 244-7 II 12 213-53 13 199-38 14 15 173-97 16 17 ' Observed weight in
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