352 



for the first time, the delicate pericardium. It was well shown in the room 

 that evening, including the so-called sense organ or ganglia. 



Mr. Michael said he had, at Mr. Bousselet's request, brought to the 

 meeting the specimen of the larval Ascidian to which he had referred, but 

 which was not the same species as that described in the paper. He would 

 remind the members that this creature was the one on which Mr. Gosse 

 made his famous observations as to the course of the blood. He fancied 

 the species was freely distributed on the British coasts, and though first 

 found at Brighton by Mr. Lister, it was common in other parts, particularly 

 in Anglesea and in the North Sea. It was certainly a most beautiful and 

 interesting species. 



Mr. Waddington said it was not at all a rare object in many places. On 

 all the clumps of Tubicolaria which they got at Whitstable on their las 

 excursion there were specimens, and the one he exhibited that evening was 

 upon a Tubicolaria stem obtained on that occasion. 



The thanks of the meeting were voted to Mr. Rousselet for his paper. 

 Mr. Western said he had been reproached because he had made " Science 

 Gossip " the medium of announcing something new. He therefore had 

 brought to the meeting that evening another new species, Diglena lacustra, 

 not hitherto found in Britain. 



Announcements of meetings for the ensuing month were then made, and 

 the proceedings terminated with the usual conversazione, the following 

 objects being exhibited : — 



Limnias annulatus ... ... ... ... Mr. F. VV. Andrew. 



Spinnerets of Spicier, Cinifio similis ,.. ... Mr. G. E. Mainland. 



Larvae of Compound Ascidians ... ... Mr. A. D. Michael. 



Compound Ascidians, from Whitstable ... Mr. F. A. Parsons. 



Perophora Lister i ... ... ... ... Mr. C. Rousselet. 



Larva of an Ascidian ... ... ... ... ,, „ 



Cladothrix dichotoma ... ... ... ,.. Mr. H. M. Simmonds. 



Photographs, showing diatom structure ... Mr. T. F. Smith. 



Perophoira, growing on stem of tubularia ... Mr. H. J. Waddington. 



Diglena lacustris, Ehren. ... ... ... Mr. G. Western. 



Attendance — Members, 41 ; Visitors, 4. 



