260 APPENDIX. 



some pieces of aphthous membrane,, in which I found numerous 

 elements of the fungus. Of these pieces I placed a great number 

 between the jaw-bones and cheeks of three still blind sucking 

 puppies, where the fungus would support itself longer without be- 

 coming swallowed. I hoped in this case the sooner to resuscitate 

 the fungus, because the puppies only a few hours before the inocu- 

 lation had their ears and tails cut off, and the animals were brought 

 down a little and were anaemic. But, although for fourteen days 

 I examined the dogs every other day, still I could discover none 

 of the aphthae on any part of the mouth. Professor Haubner has 

 informed me that he never saw aphthae on young dogs. Should 

 the external appearances after similar experiments be found 

 in the mouths of sucking calves, Haubner, ought to state that 

 he had produced aphthae from fungi. 



Page 225. To the kindness of Professor Luschka I am 

 indebted for my knowledge of the original labours of Pacini. 

 Although Pacini certainly was incorrect if he meant that he 

 had found two peculiar plants in the ear, and if he considered 

 the figures K to N to be an alga resembling Oidium albicans 

 and figures A to J a fungus. Robin is perfectly correct if he 

 understood the figures K to N as the mycelium of A, so I am 

 still, after comparison of the original and the version of Robin, 

 necessitated to make these remarks. I mention only by the way 

 that Robin allowed Dr. Bargellini's patients to go back to the sea- 

 baths of Florence instead of those at Livorno. 



The white fatty -looking masses in the ear which entirely 

 covered the tympanum, which only became visible when injections 

 or other attempts to remove the fungus accidentally shifted a 

 portion of the fungus on one side, and allowed a piece of 

 the tympanum to come into view consisted of granulations, 

 mostly epidermic cells filled with fine granules, which were very 

 transparent and uniform, and had a diameter from 0*015 0*018 

 mm., and of the elements of the fungus. 



The capitulum of the fructifying elements was completely 

 spherical, that of Mayer's ear fungus pear-shaped. The colour 

 changed according to the size of the capitulum and according to 

 its state of maturity ; with advancing age and ripeness the head 

 became darker, less transparent, and more indistinct in its 

 structure. The placenta or the centre of the capitulum = the 

 proper receptaculum, was of very varied dimensions; in 

 figure A it measured 0'142 mm. 0*037 mm. in diameter, in 

 smaller specimens it was of less size. This structure consists of 



