178 
ASPIDIUM. 
Henkel, Alice, mentions Dvyopteris filix-mas (L.) Schott, also 
known as Aspidium filix-mas Sw., and Polypodium filix-mas L., 
commonly known as aspidium and male fern, as found in rocky woods 
from Canada to northern Michigan, and in the Rocky Mountains to 
Arizona. 
Dvyopteris marginale (L.) Gray., also known as Aspidium mar- 
ginals Sw., and P oly podium marginale L., and commonly known as 
aspidium, evergreen wood-fern, and marginal-fruited shield-fern is 
also mentioned. Found in rocky woods from Canada south to Ala- 
bama and Arkansas. — Bui. Bur. Plant Ind., U. S. Dep’t. Agric., No. 
89, 1906, p. 27. 
Hazen, T. E. (in Fern Bull. H: 25, 26 [Mr.], 1906), refers to the 
occurrence of Dvyopteris filix-mas in Vermont. — Bull. Torrey Bot. 
Club, 1906, v. 33, p. 360. 
Kraemer, H., asserts that aspidium is frequently adulterated by 
one or more species of Osmunda. — Proc. Am. Pharm. Ass., 1906, v. 
54, p. 334. 
Laurent (Repert. de therap.) asserts that Aspidium spinulosum , 
a fern quite common in Finland, is just as useful in the treatment of 
tapeworm as Aspidium filix-mas. — Am. Druggist, N. Y., 1906, v. 48, 
p. 70. 
Wollenweber, IV., records an investigation of the tannin of as- 
pidium, and discusses the several constituents of this drug. — Arch, 
d. Pharm., Berlin, 1906, v. 244, pp. 466-486. 
Naylor, TV. A. H., reviews the literature relating to the constitu- 
ents of male fern, and points out that while the present knowledge 
does not permit of a correct estimation of the vermifugal activity of 
the drug it does permit of the application of tests for adulterants. — 
Yearbook of Pharmacy, 1906, pp. 216. 
Philipp Roder, Wien, suggests determining the ash content and 
the ether extract content of aspidium. The former should not exceed 
3 per cent while the ether extract should be at least 8 per cent of the 
weight of the drug. — Pharm. Ztg., Berl., 1906, v. 51, p. 278. 
Caesar and Loretz outline a method for the estimation of crude 
filicin. — Geschafts-Ber. v. Caesar & Loretz, in Halle, a. S., 1906, 
pp. 99. 
Ohliger, Willard, finds it difficult to purchase aspidium while 
still green, in quantity; some samples are entirely brown and use- 
less. — Proc. Michigan Pharm. Ass., 1906, p. 46. 
Fowler, J. R. (Brit. M. J., Lond., Apr. 14), details the technic 
of treating tapeworm with aspidium. — J. Am. M. Ass., 1906, v. 46, p. 
1479. 
Kriidener (Zeitschr. f. Augenheilk., 1906, v. 16) reports some 
observations on the occular symptoms manifested by a patient who 
