620 PROCEEDINGS OF THE SOCIETY. 



diseases co-existed ; but that coincidence alone would not be sufficient 

 reason for co-ordinating the two diseases. 



As to the suggestion that smokers might be more free than others 

 from pyorrhoea, she did not consider that smoke possessed any antiseptic 

 properties. For protective or curative purposes a saturated' solution of 

 a mild antiseptic such as boracic acid used several times a day was much 

 better than smoking. 



With regard to Mr. Drew's observations on the presence of Limax 

 anmbse in the pockets, no doubt the cysts might sometimes open in the 

 mouth as they did in the intestine occasionally, and in those cases 

 probably the contractile vacuole would be lost. True parasitic amoebae 

 never had a contractile vacuole. The Entammha coli and parasitic 

 amoebfe were scavengers ; they did not feed on the actual tissues. 



The President said it devolved upon him to propose a very hearty 

 vote of thanks to Mrs. Pixell Goodrich and Miss Moseley. The Society 

 could not but feel honoured at being selected as the medium through 

 which the results of their study of this sul)ject had been set forth and 

 published. Not only had the evening l)een one of intense interest, but 

 the paper would be a contrilmtion of great value in the Journal, in 

 which it would appear in extenso. The vote was carried by acclamation. 



Mr. Scourfield said it had l)een hoped that there would be a good 

 show of living specimens belonging to tlie Volvocacea? that evening, but 

 during the last week or two nearly everything except Volvox itself 

 seemed to have disappeared. The only living specimens on view were 

 therefore representatives of the two common species of Volvox, viz. 

 V. glohator and V. aureus, and possibly a species of Cldamydomonas. 

 All the others shown were mounted specimens. Three very interesting 

 exhibits had been sent by Professor G. S. West, viz. PJeodorina 

 illiHoise/isis, P. californica and Flalydorina caudata. The last-named, 

 although nearly a flat plate, like Gonium, evidently did not originate as 

 such, but had been evolved from an ellipsoidal form. This was proved 

 by the fact that the cells alternated, one having the flagella pointing to 

 one side and the next in the row pointing to the other side. Although 

 the exhibition was not very extensive, he thought the specimens would 

 show fairly well the close relationships which existed among this very 

 interesting group of minute plants. 



The President proposed that the thanks of the Society be tendered 

 to Mr. Angus for the loan of the Microscopes under which the exhibits 

 were placed, as well as to those Fellows who had contributed specimens ; 

 which was carried by acclamation. 



It was announced that the meeting of the Biological Section would 

 take place on Wednesday, November 1st, and to it Fellows were 

 Cordially invited, especially those who had recently joined, so that they 

 might see what the biological work of the Society was. 



