Law Governing Loss of Weight in Starving Cassiopea. 



67 



Table 6 shows the decline in weight of 10 normal medusae of Cassiopea 



xamachana starved 25 days in filtered sea-water in the diffuse light of the 



laboratory from June 22 to July 17, 1910, at Tortugas, Florida. The 



medusae were kept in a 6-liter glass aquarium, the water being changed 



once in each 24 hours. 



Table 6. 



* According to formula y = 131(1 — 0.046)^ 



•No weighing. 



10 medusae of Casaopea starved 

 25 days in diffuse day-light 



10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 

 Days X 

 Diagram illustrating Table 6. 



Table 7 shows the decline in weight oj 1 1 normal medusae of Cassiopea 

 xamachana starved 22 days in filtered sea-water in the diffuse light of the 



