108 
BULLETIN 51, UNITED STATES NATIONAL MUSEUM. 
VOLUME XXII, CONTAINING PAPERS 1140-1178. 
Smithsonian Institution. | United States National Museum. | —— | 
Proceedings | of the | United States National Museum. | —— | 
JE 
Volume XXI, 
— | Published under the direction of the Smith- 
sonian Institution. |—— | Washington: | Government Printing 
Office. | 1899. 
. 1140 
. 1141. 
. 1142. 
. 1148. 
. 1144. 
. 1145. 
. 1146. 
. 1147. 
. 1148. 
1149. 
. 1150. 
8yo., pp. xiii, 1-933, 89 pls., 105 figs. 
Contributions toward a monograph of the lepidopterous fam- 
ily Noctuidee of boreal North America. A revision of the spe- 
cies of Acronycta Ochsenheimer, and of certain allied genera. 
By John B. Smith and Harrison G. Dyar. 
pp. 1-194, 22 pls. 
Descriptions of the species of Cycadeoidea, or fossil cycadean 
trunks, thus far determined from the lower cretaceous rim 
of the Black Hills. By Lester F. Ward. 
pp. 195-229. 
On some new parasitic insects of the subfamily Encyrtine. 
By L. O. Howard. 
pp. 231-248. 
On the coleopterous insects of Galapagos Islands. By Mar- 
tin L. Linell. 
pp. 249-268. 3 
The birds of the Kuril Islands. By Leonhard Stejneger. 
pp. 269-296. 
Description of a species of Actaeon from the quaternary 
bluffs at Spanish Bight, San Diego, California. By Robert 
E. C. Stearns. 
pp. 297-299, 1 fig. 
Report on a collection of Japanese diptera, presented to the 
U. S. National Museum by the Imperial University of 
Tokyo. By D. W. Coquillett. 
pp. 301-340. 
Notes on the mammals of the Catskill Mountains, New York, 
with general remarks on the fauna and flora of the region. 
By Edgar A. Mearns. 
pp. 341-360, 6 figs. 
Topaz crystals in the mineral collection of the U.S. National 
Museum. By Arthur 8. Eakle. 
pp. 361-369, 22 figs. 
Notes on Cytherea (Tivela) crassatelloides. Conrad, with 
descriptions of many varieties. By Robert E. C. Stearns. 
pp. 371-378, 3 pls. 
On the occurrence of Amphiuma, the so-called Congo snake, 
in Virginia. By Hugh M. Smith. 
pp. 379-380. 
