Biographical Sketch of the late John Evans,M.D. 811 
Wash. M. T.’ a c.—o. 6 c.—o. 
é 
July 241950 15048 68 = 340 6312485 (eB 
336480 147 56 52:0 +179 6610 24 — 06 
88102 148 14 43-1 - 95 66 11 49:9 et 
63908 152 46 48°8 +248 66 34 176 — 25 
436786 164 40 26° +18°6 66 54 21-2 — 55 
637421 18749 03 + 25 51 — 58 
836769 200 12 23°3 — 05 50 — 08 
1053104 207 46 0-2 — 14 58 58 55°8 — 94 
11:45260 209 59 30 + 23 57 56 58-2 —10-2 
1242192 21154 91 + 89 56 58 12'1 — 78 
14-43062 214 56 37-2 + 75 55 14 25°5 — 61 
16 37969 6 96 —13°4 52 & + 52 
17°35071 217 58 33:0 = 48 53 16 87°0 + 15 
4215 1 588 1 42 53 14.137 — 38 
20:40982 220 9540 +167 51 42 285 — 38 
23°37224 921 44 407 +195 50 30.1 — 91 
24 25193 222 11 27:8 28°1 59 9 268 — 98 
25 86487 222 87 26-0 +325 49 49 15°3 —13°2 
2737080 228 24 383 +360 49 12 25°8 — 89 
From these residuals it is evident that the orbit requires yet 
some correction, not sufficient, however, it is believed, to change 
its decided hyperbolic nature. 
Art. XXXV.—A Sketch of the Life and Scientific Services of 
John Evans, M.D., U. 8. Geologist for Oregon and Washington 
Territories, and of the U.S. Chiriqui Exploring Expedition; by 
Cuarues T. Jackson, M.D., of Boston. 
adventurous are willing to undertake or are able to accomplish 
em 
We look with the same interest on one who has successfully 
accomplished such feats in behalf of science, as we regard the 
war-worn veteran who has returned from a successful campaign 
art the enemies of his country. We know and feel what 
ardshi 
umphs ee difficulties and dangers, while we enjoy with him the 
they have been ac- 
quired. The enthusiastic geologist, thousands of miles away from 
home, throwing away much needed bread in order to preserve 
Specimens to illustrate the mineral ey) geology, and natural his- 
) 
tory of the country he explores, kin les in us a profound respect 
