475 



vations went to show tliat the mandibles were embedded in the 

 upper part of the labium, and it was just possible that these so- 

 called teeth might be excrescences on the mandibles ; but it was 

 at least certain that whenever teeth were found on the mandibles 

 they were always part of the mandibles, and it was more probable 

 that these might be part of the second pair of mandibles, the 

 maxillae. 



Mr. Neville said he should like to express his thanks to Mr. 

 Harris for his paper ; for although the subject might have been 

 dealt with in " Science Gossip," he had never had it brought 

 so clearly before him as it had been that evening. I'he structures 

 referred to were perhaps not to be regarded as teeth, but rather 

 as triturating organs ; but he should like to ask Mr. Harris what 

 he considered they were derived from, and also when they were 

 of a very strong nature, did he consider them characters of 

 carnivorous insects ? 



Mr. Harris said he could not answer all these questions ; it 

 was a subject which required a great deal of study. He was 

 not sure whether all the insects Avith strong teeth were carni- 

 vorous, but certainly some of them were — e.g., Sarcojyhaga. As 

 regarded the slides which he had used in illustration of his 

 paper, he could only say they were all new, and he had never 

 shown them before. 



The Chairman moved a hearty vote of thanks to Mr. Harris 

 for his paper, which was carried unanimously. 



The Secretary said he had received a contribution from their 

 old friend Mr. Rosseter on his favourite subject, the tape -worms. 

 As this was, however, a purely morphological paper, dealing with 

 the anatomy of Drepanidotaenia temiirostris, it would hardly be 

 of general interest to the meeting at that hour, and it was 

 proposed that it be taken as read. It was a very excellent 

 paper on the matters dealt with, and would appear in the Journal 

 in due course. 



A vote of thanks to Mr. Rosseter for his communication was 

 unanimously carried. 



The proceedings then closed with the usual conversazione. 



