492 
SUMMARY OF CURRENT RESEARCHES RELATING TO 
b b' and e e\ The tray is grooved to prevent the slides touching at the 
bottom, while at the top is a toothed rackwork / < 7 , much like a scullery 
plate rack. The method of using the apparatus is obvious from the 
illustration. The material of which the apparatus is made is brass, and 
Fig. 80. 
back to back it will hold sixty slides. The chief measurements are as 
follows : — Bottom 16 by 6 cm.; uprights, 25 cm.; tray, 15 by 3*5 m. 
Of course the measurements vary with the size of the slides, as may be 
seen by comparing the two illustrations. 
Staining the Plasma-sheath of Anthrax.* — Herr F. Liipke recom- 
mends a freshly prepared 0*2 per cent, solution of gentian-violet for 
staining anthrax, and makes this by taking a drop of a 10 per cent, 
alcoholic solution of gentian-violet and adding it to 50 drops of sterile 
water. The cover-glass preparation is then heated until the fluid begins 
to vaporise, after which it is washed with water. 
Demonstrating the Nerve-fibres of the Vertebrate Heart. j — In 
studying the innervation of the vertebrate heart Drs. J. F. Hymans and 
* Deutsch. Tierarztl. Wochenschr., 1895, p. 23. See Centralbl. f. Bakteriol. u. 
Parasitenk., l te Abt., xvii. (1895) p. 683. 
t Arch, de Biol., xiii. (1895) pp. 619-70 (25 photo plates). 
