PEOCEEDINGS OF THE SOCIETY. 431 



whether it did not occur to Mr. Martin Duncan that a similar process 

 was possible in the case of his eggs of Portunus depurator. 



Mr. Martin Duncan, in reply to a question, said the second and 

 third depositions were small in comparison with the first. Each 

 subsequent deposit yielded a smaller number. He considered the 

 President's suggestion was quite possible. 



The President then called on Mr. Arthur Earland to read their joint 

 paper " On Nouria rugosa : a new Foraminifer from the Shetland- 

 Faroe Channel." 



Mr. Earland stated that it had been intended to illustrate the note 

 by direct enlargements of the actual specimen thrown on the small screen, 

 but since the opening of the Meeting Mr. Barnard had informed him 

 that he was not satisfied with tlie results obtained. He should, there- 

 fore, be compelled to fall back on the few lantern slides which had been 

 prepared from the specimen. 



The genus Nouria was instituted by the authors in 1914 for the 

 reception of some tropical and sub-tropical Lituoline Foraminifera 

 isomorphous in structure with the perforate genus Polijmorphina. 

 Subsequently a specimen was obtained from the Faroe side of the 

 Shetland-Faroe Channel which presented the characteristic features of 

 the genus, but differed from the previously described species. Nouria 

 rugoaa is 2 mm. in length and constructs a polythalamous shell of 

 minute siliceous sponge spicules. They are all of uniform size, about 

 O'l ram. in length, and of curved Oxea type. Considerable ingenuity is 

 shown in the construction of the shell, the spicules being regularly 

 arranged with the convex edge of one fitting into the concavity of the 

 next. This necessitates a frequent change of direction in the arrange- 

 ment of the spicules, and the intervening gaps are filled up with spicules 

 singly or in tufts, arranged with points projecting from the surface. 

 A certain amount of foreign material, megascleres, foraminiferous 

 shells, &c., is also utilized in the construction of the test, but although 

 these particles are very noticeable owing to their size they play a 

 minor part in the construction. The sponge from which the spicules 

 are derived has not as yet been identified. 



After the paper had been taken, Mr. Barnard said that he was pre- 

 pared to show a few direct enlargements of Foraminifera on the small 

 screen as an experiment. 



It was agreed that the results were very satisfactory, although the 

 small size of the image and the weak illumination left room for further 

 experiment and improvement. 



The President announced that the next Meeting would be held on 

 October 17th. 



The Rooms of the Society will be closed from August 18th to 

 September 17th. 



