

CO:^TE]S'TS. 



PREFACE, 

 INCLUDING A BRIEF NARRATIVE OP EXPLORATIONS PROM 1853 TO 1857. 



ERRATA, 

 WITH ADDITIONS AND CORRECTIONS UP TO 1860. 



TART I.— METEOROLOGY. 



With an Isothermal Chart and Plates of Scenery. 



Comparison of Nebraska with regions having a similar climate in Europe — 2. Climate of Washington Territory — 9. 

 General Conclusions (inserted here by mistake, instead of at the end of the Chapter) — 14. Cold as an obstruction to the 

 Railroad route — 15. Snow as an obstruction to the Railroad line — 19. Table of mean temperatures at stations between the 

 mouth of the St. Lawrence and Puget Sound — 26. 



PART II.— BOTANICAL REPORT. 



With ten Plates— Iiist of Illustrations K-iK.- .7. 



No. 1. — Report on the Botany op the Route — [including the Physical Geography and the distribution of plants 

 and animals in Washington Territory] — 9. The Cascade Mountains — 9. Great Plain of the Columbia — 12. Region west 

 of the Cascade Mountains — 14. Prairies of tlie western region — 15. Forests of the western region — Coniferous trees — 20. 

 Broad-leaved trees — 23. Shrubby undergrowth — 26. Climate of the western region — 28. Fresh waters of the Territory — 

 30. Salt waters of the Territory — 32. Scenery of the western region — 34. 



No. 2. — Catalogue op Plants [collected East of the Rocky Mountains — 3G. Echinospermum Fremontii — 42. 

 Endolepis Suckleyi — 43. Obione Suckleyana — 43. [N. B. — Only new species are named in these tables.] 



No. 3. — Catalogue op Plants collected in Washington Territory — 46. Plants collected from the summit of 

 the Cascade Mountains, eastward to the upper Columbia River, and northward to the 49th degree of latitude, between July 

 and September, 1854 — 47. Astragalus serotinus — 47. Malacothri.x crepoides — 49. Plants collected west of the Cascad.^ 

 Mountains during 1854-'55 — 51. Sisymbrium deflexum — 52 [described in Whipple's P. R. E. Rep., vol. IV., p. 66.] 

 Lathyrus villosus — 54. Cymopterus littoralis — 59. 



I.vdex to Botanical Report — 69. 



