ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 
355 
Perforated Porcelain Cylinder as Washing Apparatus.* — Mr. W. Gr. 
Fairchild describes a new washing apparatus. It consists (fig. 70) of a 
cylinder of white unglazed porcelain, haying both sides and bottom per- 
forated with small holes, and provided with a cork large enough to float 
the cylinder in the washing fluid. 
Fig. 68. Fig. 69. 
Cultivating’ Gonococcus.f — Dr. Hammer uses highly albuminous 
urine for cultivating Gonococcus. The urine, obtained with antiseptic 
precautions, is passed into sterilised vessels and, if necessary, filtered. 
Mixed with glycerin- agar, it makes plates on which Gonococcus is easily 
isolated, even in the presence of other organisms. This medium is said 
to be far more successful than blood-serum-agar. 
Cultivating Spirillum Undula majus.f — Prof. Zeltnow cultivates 
* Z:itscbr. f. wiss. Mikr., xii. (1896) pp. 301-3. 
f Deutsch. Med. Wockensckr., 1895, No. 51. See Centralbl. f. Bakteriol.' u. 
Parasitenk., l te Abt., xix. (1896) p. 239. 
X Centralbl. f. Bakteriol. u. Parasitenk., l te Abt., xix. (1896) pp. 393-5. 
