101 
3. DROPS AND DROPPERS. 
The Ph. Austr. VIII prescribes the use of the international drop 
counter, having a dropping surface of 3 mm. and delivering, at 15° C., 
20 drops of distilled water to the gramme. 
The Ph. Belg. Ill defines the official drop counter as a tube the 
outer diameter of the dropping surface of which is exactly 3 milli- 
metres. At 15° C. such an instrument should deliver 20 drops of 
water to the gramme. 
Wulff, C., points out that the international standard for drops 
has been adopted in the Ph. Hisp., Ph. Adi., and Ph. Austr. The 
first two also include a table of comparative weights of drops of 
various preparations. — Ber. d. pharm. Gesellsch., Berl., 1906, v. 16, 
p. 150. 
Avon's, P., thesis on the application of a normal drop counter in 
practical pharmacy is comprehensively reviewed and his conclusions 
succinctly stated in Ann. de chim. analyt., Par., 1906, v. 11, pp. 296- 
299. See also J. de pharm. et de chim., Par., 1906, v. 23, p. 122. 
Koren, A., has applied for a patent, in Norway, for a simple 
device by means of which the drops from a pipette may be regulated. 
The device consists simply of the introduction of a more or less 
pointed nail into and through the outlet of the pipette. In use, the 
size of the drops depends on the shape and size of the nail. — Pharm. 
Ztg., Berl., 1906, v. 51, p. 353. 
Wiebelitz, H., points out that the adoption of a normal drop 
pipette in the Ph. Germ, is desirable, particularly for use in connec- 
tion with quantitative tests. — Ibid., v. 51, p. 1003. 
2. FOREIGN PHARMACOPCEIAS. 
Wulff, C., reviews the new foreign pharmacopoeias that have ap- 
peared since the publication of the Ph. Germ. IV; the Ph. Ital., Ph. 
Svec., Ph. Ndl., Ph. Hisp., U. S. P. VIII, and Ph. Austr. He points 
out that of the six new pharmacopoeias reviewed by him five were 
in the vernacular, only Ph. Austr., because of the existence of a 
number of languages in Austria, being in Latin. The Netherlands 
Pharmacopoeia also has a Latin edition, though the most widely 
circulated or used edition is the Dutch. Ph. Ital., Ph. Svec., Ph. 
Hisp., and U. S. P. are in the vernacular. He also points out that 
many, if not all, of the European pharmacopoeias indicate the number 
of medicaments that are to be found in pharmacies. Ph. Austr. re- 
quires that all official medicaments be kept in stock by the pharmacist, 
while the Ph. Ital., Ph. Ndl., and the Ph. Svec. confine this require- 
ment to certain specified articles. In the Ph. Ital. these articles are 
indicated by an asterisk, while the Ph. Ndl. and Svec. use the 
asterisk to indicate those not necessarily found in the pharmacy. — 
Ber. d. pharm. Gesellsch., Berl., 1906, v. 16, pp. 117-175. 
