PROCEEDINGS OF THE SOCIETY. 527 



The lens was fixed in position. There were two similar instruments in 

 the Society's collection, one by Dollond and the other by Tully. 



The thanks of the Society were voted to Mr. Skinner for his exhibit. 



The Chairman called attention to a number of slides of sections 

 illustrating the development of the chick, which were exhibited under 

 Microscopes in the room — for which the thanks of the Society were 

 unanimously voted. 



Some stereo-photomicrographs sent by Mr. Dollman were also ex- 

 hibited, and were passed round for the inspection of the Fellows present,, 

 the thanks of the Meeting for these very beautiful objects being voted 

 to Mr. Dollman. 



Mr. E. Her on- Allen read a paper — the joint production of himself 

 and Mr. A. Earland— on " Cycloloculina, a New Generic Type of 

 Foraminifera," which they had found on the shore of Selsey Bill ; a map 

 of the district was exhibited, on which the points where the specimens 

 were collected were pointed out, and a number of lantern slides in further 

 illustration of the paper were shown upon the screen. 



Mr. Earland said that it had been a great pleasure to him to have 

 been associated with his friend in the description of a very interest- 

 ing type, and he thought Mr. Heron-Allen was entitled to much credit 

 for the perseverance with which he had pursued his investigations into 

 the source of its origin. He believed they would eventually trace the 

 specimens to some Eocene deposit which was not exposed above low- 

 water mark. The specimens which had been discovered in the Pleis- 

 tocene deposits were probably derived from the denudation of this 

 undiscovered bed during Pleistocene times, for the Pleistocene deposits 

 were of cold water or even arctic origin, whereas Cycloloculina was by its 

 affinities a sub-tropical type. Of one thing he was convinced, the source 

 of origin could not be very far away from the place of discovery, for the 

 specimens were too fragile to travel any considerable distance after they 

 were washed out of their native bed. 



The thanks of the Society were unanimously voted to Mr. Heron- 

 Allen and Mr. Earland for their communication. 



Mr. J. W. Gordon gave a resume of his paper on "An Illuminating 

 Apparatus for the Microscope," in which the light from a Nernst lamp 

 was conveyed to the stage through a glass rod — the intensity of the 

 light being regulated by the distance of the lamp from the end of the 

 rod. This apparatus was exhibited in the room, and a demonstration of 

 its utility was given at the close of the Meeting. He added, that Mr. 

 Oonrady had been good enough, having read a proof of his paper, to 

 write him a letter on the subject, in which he mentioned that a glass 

 rod, bent to a curved form, had been used as a speculum for trans- 

 mitting the light from a Microscope lamp to a point close beneath the 

 sub-stage condenser by Dr. Kochs twenty years ago, and was at one time 

 produced commercially by the firm of Zeiss, of Jena. 



The Chairman said that the principle of illuminating through a 

 glass rod was not new, as it was shown before that very Society some 

 twenty years ago ; but in that case the rod was bent from an iron screen 



