aCHMECKEBiEB.] POWELL, AND WHEELER SURVEYS. 131 



Lesquereux (L. ) , on the fossil plants of the Cretaceous and Tertiary formations 



of Kansas and Nebraska H, Ann 4, pp 370-385 



on the general characters and relation of the flora of the Dakota group. 



H, Bull, vol I, ser 1, No 2, pp 52-62 

 on the Tertiary flora of the North American Lignitic considered as evidence 



of the age of the formation H, Ann 8, pp 275-315 



remarks on specimens of Cretaceous and Tertiary plants secured by the 



Survey in 1878, with a list of species hitherto described . . .H, Ami 10, 



pp 481-520 



review of the Cretaceous flora of North America H, Ann 8, pp 316-365 



review of the fossil flora of North America H, Bull, 



vol I, ser 2, No 5, pp 233-248 



Tertiary flora of North America H, Ann 5, pp 304-318 



Tertiary flora of the western Territories H, Mon vii 



Leucite rock, analysis of, from Wyoming, Green River Basin K, ii, p 237 



of Wyoming, Leucite Hills, microscopic petrography of K, vi, pp 259-261 



thin section of, from Wyoming, Leucite Hills K, vi, pi 5 



Leucitophyrite, analysis of, from Wyoming, Leucite Hills H, Ann 11, p 135 



Leucosticte, monograph of H, Bull, vol i, ser 2, No 2, pp 51-82 



(See, also. Vertebrates.) 

 Leucosticte tephrocotis, sexual, individual, and geographical variation in..H, Bull, 



vol II, No 4, pp 345-350 

 (See, also, Vertebrates.) 

 Lewis and Clarke, travels of, account of publications relating to, with a com- 

 mentary on the zoological results of their expedition H, Bull, 



vol I, ser 2, No 6, pp 417^44 



Lignite, analysis of, from Colorado, Boulder, Marshall mine K, iii, p 483 



analysis of, from Colorado, South Boulder Creek H, Ann 3, 



p 94; H, Ann 1-3, p 194 



deposits of, in the upper Missouri region H, Mon ix, pp xlvii-lxi 



formation of H, Ann 6, pp 350-358 



of Colorado, age 'of W, iii, pp 404—410 



Lignitic formation, age of H, Ann 7, pp 367-379 



age of, as determined by fossil plants H, Mon viii, pp 309-355 



exposures, study, etc., of H, Ann 8, pp 19-33 



of Colorado H, Ann 8, pp 28-35 



eastern, and portions of Wyoming . . .H, Bull, vol i, ser 2, No 5, pp 401^11 



front range, east of H, Ann 7, pp 106-110 



Middle Park H, Ann 7, pp 156-157 



of North America, distribution, age, stratigraphy, etc., of . -H, Mon vii, pp 3-31 

 - Tertiary flora of, considered as evidence of the age of the formations. 



H, Ann 8, pp 275-315 



of Eocky Mountain region H, Ann 6, pp 317-427 



plants of, some new species of H, Bull, vol i, ser 2, No 5, pp 363-389 



(See, also. Fort Union group. ) 



Lignitic formation and its fossil flora H, Ann 7, pp 365—425 



Lilowat language, vocabulary of FAh, i, pp 268-283 



(See, also, Ethnology and arch;eology.) 



Limestone, analysis of, from Colorado K, ii, p 39 



analysis of, from Colorado, Browns Park K, ii, p 274 



from Colorado, Green River K, i, p 542 



North Park - .' K, i, p 542; K, ii, pp 112-129 



from Nevada, Carson River, vicinity of K, i, p 542 



