20 



JOURNAL OF THE 



[January^ 



5. Spirillum of Beggiatoa, sliowing stained flagella, 



6. Arcella. with pseudopodia projecting. 

 Exhibits 1-6 by A. A. Julien. 



7. Living Volvox globator : by C. S. Shultz. 



8. Photomicrographs : Podiira, entire ; Navicula rhomboide^, 

 X 2,000, taken with a lens of extreme under-correction. The 

 same, taken with a Spencer J^-, N. A. 1.35 : by H. G. Piffard. 



9. Home-made, convenient trays for bottles containing 

 microscopical specimens 1 by J. L. Zabriskie. 



Mr. Zabriskie explained his trays as follows : Four trays of 

 a set are here exhibited, each tray being eleven and one-quar- 

 ter inches long, one inch wide, and two and one-half inches 

 high, all being intended to stand upright, closely adjoining 

 each other, on the shelves of a cabinet twelve inches in depth 



Tray for small bottles. 



inside. The bottom and the one side of each tray are made of 

 white wood one-eighth of an inch thick ; the rear end of white 

 wood one-quarter of an inch thick ; and the front of walnut 

 three-eighths of an inch thick. This thin wood may be pur- 

 chased of hardware dealers who supply scroll-saw material; the 

 white wood at about four cents a square foot, and the walnut at 

 about twelve cents. The entire inner surface of each tray is 

 pasted with white paper, the reflected light from which allows 

 the easy and rapid examination of an entire set of bottles while 

 in position, by means of a hand lens. 



These trays each contain seventeen one-drachm homoeopathic 

 bottles. Each bottle is held in place by a brass spring clip 

 clasping the bottle near the middle. The clips are made from 

 soft, thin sheet brass, cut in oblong strips about one-quarter of 

 an inch wide and one and one-quarter inches long, of such size 



