1892.] NEW-YORK MICROSCOPICAL SOCIETY. 115 



to left, or the reverse, offering a prettier phenomenon than is 

 offered by common silicious sands. 



" 6. A slide showing two species of foraminifera from Bon 

 Secour Bay, inside Mobile Bay. These shells seem to be built 

 up with minute plates of mica, well marked under polarized 

 light by color contrasts. 



" 7, A slide showing inclusions in flint. This slide was pre- 

 pared as follows: Very thin flakes were detached from a flint 

 nodule, put on the slide, and immersed in gelatin. After 

 twenty-four hours the gelatin had dried to a thin pellicular 

 coating, after a manner polishing the flint chips. A drop of 

 balsam was then added and the cover glass put on. The gela- 

 tin pellicle prevented the penetration of the balsam, and as- 

 sisted in retention of air in the various spicular spaces. The 

 slide shows a variety of organic inclusions, and an ink dot 

 marks the spot where three Xanthidia are grouped together, and 

 can be easily found with a one-sixth objective. It is nearly as 

 easy to trace out the inclusions when so mounted as it would be 

 with a polished section of flint." 



Dr. E. G. Love exhibited on the screen, with appropriate de- 

 scriptions, projections of loo lantern slides of photomicrographs 

 of various objects. 



Meeting of June 3D, 1892. 



The President, Mr. J. D. Hyatt, in the chair. 



Sixteen persons present. 



Rev. J. L. Zabriskie read a paper entitled *' Notes on the 

 Structure of the Fruit-stone of the T>2Ji^,PJixnix dactylifera L.," 

 published in this volume of the Journal, p. 107, and illustrated 

 by diagrams and microscopical preparations, as noted below. 



objects exhibited. 



1, Sections of Cementstone from Sandai, Japan, prepared 

 from material donated to the Society by Mr. K. M. Cunning- 

 ham: by James Walker. 



2. Section from fossiliferous Chert, prepared from material 

 donated to the Society by Mr. Cunningham from St. Stephens, 

 Ala., of concretionary structure, and a replacement of some fos- 

 sil forms of Chalcedony: by James Walker. 



