568 



EDWARD B. MEIGS 



Experiment 70 

 April 16,1912 

 Sartorius from leopard frog 63^ 

 weighed fresh 0.141 gram 

 10.45 A.M. immersed in 12 per cent 



cane sugar solution 

 11.15 A.M. weighed 0.115 gram, fibers 

 about same length as orig- 

 inally, no sign of rigor 

 11.45 A.M. weighed 0.112 gram 

 12.15 P.M. weighed 0.115 gram 

 12 . 45 P.M. weighed 0. 114 gram, contracts 

 slowly and remans con- 

 tracted in neighborhood 

 of stimulation; trans- 

 ferred to Ringer 

 3.00 P.M. twitches now in usual way 



on stimulation 

 4.20 P.M. now somewhat more irrita- 

 ble than at 3.00 

 Temperature varied between 20° and 

 21° 



^ This frog's tissues were somewhat 

 oedematous. 



Experiment 71 

 April 16,1912 

 Stomach muscle from leopard frog 



63" weighed fresh 0.159 gram 



10.50 a.m. immersed in 12 per cent cane 

 sugar solution 



11.20 A.M. weighed 0.161 gram, fibers 

 slightly shortened 



11.50 A.M. weighed 0.183 gram, fibers 

 not much changed in 

 length 



12.20 p.m. weighed 0.214 gram, fibers 

 slightly longer than at 

 11.50 a.m. 



12.50 p.m. weighed 0.233 gram, fibers 

 now considerably length- 

 ened, especially at cardiac 

 end 

 4.50 p.m. weighed 0.235 gram, fibers 

 now much lengthened es- 

 pecially at cardiac end; 

 cardiac end no longer irri- 

 table; pyloric end very 

 slightly so 

 5.25 p.m. transferred to Ringer 



10.30 A.M. April 17, all parts of muscle 

 now lengthened and unir- 

 ritable 

 Temperature varied between 19° and 



21° 



- This frog's tissues were somewhat 

 oedematous 



