Herrick, Zerminal Buds of Frshes. Thee 
alike. The inability of the tom cod to remember to ignore a 
tactile contact which is not followed by satisfaction so long as 
the cat fish remembers a similar discrimination I take to be an 
indication that the tactile element plays a much larger part in 
the reflex complex in the gadoids. | The known distribution of 
the terminal buds favors this view also, for while they are very 
abundant on the barblets and body of the cat fish they are 
rather sparse on the free fins of the gadoids and the general cu- 
taneous nerve supply on the fins of these fishes is greatly in ex- 
cess of the communis nerve supply. 
I noticed also that all of the fishes.that ate freely in 
captivity soon accustomed themselves to novel methods of feed- 
ing and in the case of the cat fishes and the hake especially, as 
soon as I approached their tanks after the experiments had 
been in progress some time, the fishes would rise to the top of 
the tank and eagerly await the expected food. This restless- 
ness became so great with the cat fish that the experiments be- 
came increasingly more difficult and there was evidence that 
vision and possibly smell assumed greater importance after this 
expectation of food had made its appearance. 
From the experiments just summarized we may, I believe, 
conclude that these fishes taste with the terminal buds essen- 
tially as they do with taste buds within the mouth and thus we 
have added the last link in the chain of evidence necessary to 
fix the position of these sense organs, the morphological and 
the physiological evidence giving concurrent testimony to the 
essential isolation of this system from either of the other types 
of cutaneous nerves. Weare not at present able to assert with 
confidence the phylogenetic origin of the gustatory system of 
nerves and sense organs, though the structure of the brain cen- 
_ ters seems to favor the belief that the system has been differen- 
tiated from the general visceral sensory type of nerves. Of this 
it cannot be said that we have adequate proof and experience 
teaches us that, in the absence of evidence, speculations in this 
field are not very profitable. 
As intimated above, the trend of most of the recent work 
on the nervous system of the fishes accords fairly well with the 
