28 GEOUGE JOHN EOMANES 1875- 



nature of the conductile tissue, all the connections 

 must pass through the tract of tissue at b. Yet on 

 irritating that tract no spasm is given. I cannot 

 understand this on any view as to the nature of the 

 conductile tissue. 



Altogether, then, this part of the inquiry is very 

 perplexing. Other parts are definite enough. All the 

 poisons, for instance, yield very definite results, which 

 are in conformity with their actions elsewhere. 



I have had no time to do anything at the histology 

 as yet. Would it be worth while for me to send you 



various species in a 

 b little sea water ? They 



would arrive in a toler- 

 ably fresh condition, 

 but would require to be 

 examined at once. I 

 might try sending some 

 in spirit and others in 

 Fm x chromic acid. I have 



made a few preliminary 



experiments with the galvanometer on Sarsia, placing 

 one electrode on the margin and another on the 

 muscular sheet, but without any decided results. I 

 also tried placing a Sarsia in one beaker and simple 

 sea water in another, connecting by means of the 

 electrodes, but no disturbance was observable. 



June 4. 



I am working very hard just now, as there are so 

 many irons to keep hot at once. It is too soon yet 

 to see the results of spring grafting on the many 



