20 



181a. Leiberg, J. B. Cascade Range, Forest Reserve, Oregon, from T. 28 S. 

 to T. 37S., inclusive, together with the Ashland Forest Reserve and 

 adjacent forest regions from T. 28 S. to T. 41 S., inclusive, and from 

 R. 2 W. to R. 14 E. Willamette Meridian, inclusive. U. S. G. S., 21st 

 annual report, pt. 5, pp. 209-498, pis. 35-114. 



182. Ledoux, A. R. Notes on the Oregon Nickel Prospects. Carr. Mg. Rev., 



Vol. 20, pp. 84-5, 1901. Carr. Mg. Inst. Jour., Vol. 4, pp. 184-9, 1901. 



Describes the geological relations of the ore bodies and gives a 

 chemical analysis of the ore. 



183. Leidy, Joseph. Remarks on a Collection of Fossils from Dalles City, 



Oregon. Proc. Acad. Nat. Sci., Phila., pp. 111-3, 1870. 



184. Remarks on Fossils from Oregon. Proc. Acad. Nat. Sci., Phila., 



pp. 247-8, 1871. 



186. Contributions to the Extinct Vertebrate Fauna of the Western 



Territories. Report of the U. S. G. S. of the Territories (Hayden). 

 Vol. 1, pp. 210-26, 1873. 



Description of the vertebrate fossils from the tertiary formation 

 of .lohn Day river. 



186. Lesquereux, Leo. Report U. S. Geol. and Geog. Survey of the Territories 



for 1873, p. 398. (Published 1874.) 



Quercus furcinervis, Rossm. Under the lava beds of the Cascade 

 mountains, collected by Le Conte. 



187. Fossil Plants of the Auriferous Gravel Deposits of the Sierra 



Nevadas. Memoirs Mus. Comp. Zool., Vol. 6, No. 2, 1878. 



(Certain Mascall plant species included, through insufficient label- 

 ing, with those from the auriferous gravels of California.) 



188. Descriptions of Miocene Species of California and Oregon. Con- 

 tributions, Part 3, The Cretaceous and Tertiary Floras. Report U. S. 

 G. S. Territories, F. V. Hayden in charge, Vol. 8, pp. 239-55, pis. 50-9, 

 1883. 



189. Recent Determinations of I'ossil Plants from Kentucky, Louisiana, 



Oregon, California, etc. Proc. U .S. Nat. Mus., Vol. 11, pp. 11-38, 

 pis. 4-14, 1888. 



Descriptions of fossils from .John Day Valley (Van Horn's ranch) 

 collected by Capt. Chas. Berdire, from Cherry creek, Wasco county 

 (collected by Bedire), from Sam's creek, Jackson county (collected 

 by B. F. Darvele and from the Cascades). 



189a. Lewis, John H. First Biennial Report of the State Engineer, 1905-6. 

 J. R. Whitney, State Printer, Salem, Oregon, 1906. 



Discusses condition of water rights in Oregon, stream measure- 

 ments, topographic surveys. 



189b. Supplement to First Biennial Report of the State Engineer, 1905-6. 



J. R. Whitney, State Printer, Salem, Oregon, 1906. 



Review the available data on the water resources of Oregon. 



189c. Lippincott, J. B. Klamath Project. Paper read at second reclamation 

 service conference. U. S. G. S. Water Supply Paper 146, 1905, pp. 

 95-102. 



Location, drainage, irrigable lands, canals. 



190. Lindgren, Waldemar. The Gold Belt of the Blue Mountains of Oregon. 



22d annual report, U. S. G. S., part 2, pp. 551-776, 1900. 



A complete work on the district to date. A map, previous ex- 

 plorations, history and settlement, mining and metallurgy. Produc- 

 tion of gold and silver in Oregon, in Blue mountains; geology, mineral 

 deposits and detailed description of mining districts. 



