LIST OF MY ENTOMOLOGICAL PUBLICATIONS ETC. 
215 
49. Three new galls of Cecidomyiae. 
Canadian Entomologist, VII, November 1875, p. 201—202. 
50. Report on the Collection of Diptera made in portions of 
Colorado and Arizona during the year 1873. 
In Lieut. Geo. M. Wheeler’s “Report upon Explorations and Surveys 
West of the 100th meridian”; V, Zoology, p. 805—SOT, 1875, in 
quarto. 
1876. 
51. Report on the Diptera brought home by Dr. Bessels during 
the Arctic Voyage of the “Polaris” in 1872. 
Proc. Boston Soo. of Nat. Hist. XIX, Dec. 1876. 
(Biographical.) As I said above (p. 218) I devoted nearly four years, bet¬ 
ween Sept. 1873 and June 1877, to the continuation of my work on N. Ameiicau 
Diptera. I began it by spending two winters (1873—74 and 1874—75) in 
working up the Diptera of the Museum of Zoology in Cambridge, Mass, 
(where I had deposited my collections during my absence) and in preparing 
materials for the projected new edition of my Catalogue (compare in this 
“Record”, my Introduction, p. 7). After finishing this work, I undertook a 
prolonged journey through the Western States, as far as California, as much 
for the purpose of seeing the country as for collecting Diptera. 
Between December 1875 and September 1876, I travelled through Cali¬ 
fornia as far South as San Diego and San Bernardino, spent a couple of 
weeks on top of the Sierra Nevada (Lake Tahoe, Webber Lake etc.) and, 
on my return, spent some time in the Rocky Mountains (Colorado Springs, 
Gray’s Peak, Denver etc.). On my return East, in September 1876, I se¬ 
lected Newport, Rhode Island, for my winter quarters. This choice was in¬ 
fluenced by the temperate winter-climate and the agreeable, intellectual local 
society of that place, as well as by the proximity of Cambridge, Mass., 
where 1 had left my library. After nearly six, rather laborious months, 
spent in working up the cream of the entomological booty brought home 
from my Western journey, my manuscript went rapidly through the Govern¬ 
ment press in Washington, and my “Western Diptera” was issued at the 
end of April, after which, in June 1877, I departed for Europe, and this 
time sans esprit de retour! 
Brief account of my journey to California in 1876. 
Leaving Cambridge Mass, on November 27 1875, by way of New York 
I arrived in San Francisco December 20, after a short stay at Salt Lake 
City. After spending some time in San Francisco, I went by steamer to 
Santa Barbara and to Los Angeles, where I made a more prolonged stay 
