SUSPENDED ANIMATION 181 



and importance raised by the old experiments of Pictet, 

 M'Kendrick, and Horace Brown, the results of which were 

 the same as those announced as Parisian novelties. I 

 have yet to say a few words as to the reason why we 

 cannot produce " suspended animation " in higher or- 

 ganisms or in man by the application to them of extreme 

 cold. Further, the influence of extreme cold on the 

 possible passage, through space, of living germs from 

 other worlds to this earth a possibility suggested by 

 the late Lord Kelvin requires some consideration in 

 connection with the striking experiments with phosphor- 

 escent bacteria described ten years ago by Sir James 

 Dewar. 



Young stages of growth or Veliger larvae of marine snails, 

 showing the ciliated band or velum which is identical 

 with the wheel apparatus of the Rotifers or Wheel 

 animalcules. 



