FLORA OF THE SHASTA FORMATION. 217 



No time, however, was lost in liaving the Cretaceous plants determined, 

 and in July, 1897, all the collections thus far made from the Shasta beds, 

 including those that had already been once studied and reported upon, 

 were sent to Professor Fontaine and he made a thorough examination 

 of it all in the light of the latest collections. His final report was com- 

 pleted and transmitted on February 21, 1898, and the collections were 

 returned to Washington. Owing to the necessity of having the Jurassic 

 floras illustrated first, I did not send the types of the Shasta flora to the 

 division of illustrations till near the end of May, 1899. They were 

 promptly taken up and completed in July. 



During this time a few small collections of Horsetown plants had 

 been made from several localities in Oregon. A single specimen was 

 obtained by Mr. DiUer from Mr. Claude Rice, who gave the locality as 

 25 miles a little south of east of Buck Mountain. It consisted of a smaU 

 dicotyledonous leaf on a rock containing shells of Horsetown age, and 

 was first sent to Doctor Stanton, who turned it over to me on April 25, 

 1898. Three other specimens came into my hands through Mr. Diller 

 on May 31, 1898. One of them, in two complementar}'^ parts, was col- 

 lected by Mr. Rice, but the precise locality is not stated. The other 

 two, one of which was also in two complementary parts, were coUected 

 by Mr. Brown on Cow Creek at Riddles. Another specimen, also collected 

 by Mr. Brown, but from a different locality, viz, on Iron Mountain Creek, 

 half a mile above its junction with Cow Creek, was sent me on February 

 9, 1899. This locahty is in the Knoxville beds and is only about 3 miles 

 below Nichols station, where the collection of Jurassic plants was made. 

 I visited it in coiipany with Mr. Brown on September 18, 1899, but we 

 could no find more plant impressions. Aucella is very abundant in the 

 same rocks that yielded the plant. On September 21-23, 1899, I visited 

 several of the localities near Riddles where Mr. Brown had found fossil 

 plants in the shell-bearing shales of the Horsetown beds, but I was 

 mainly unsuccessful in finding plants, which are very rare. 



The interest aroused by bringing to light the specimen collected 

 near Pettyjohn's ranch by Mr. Gilbert Thompson in 1882 led to a renewed 

 effort to rediscover the locality. Mr. Thompson furnished Doctor 

 Stanton with full details, including a sketch map of the region, and on 

 September 15 and 16, 1892, the latter visited the place and made a very 

 oareful examination of the beds. He coUected specimens showing 



