JUKASSIC CYCADS FROM WYOMING. 179 



The plant is not unlike those from tlio .lurassic, called by Heor 

 Elatides, and may he compared with E. falcala:' l)uf the leaves are largei' 

 than those of that plant. It may be httingly named from its discoverei- 

 Sequoia Fairbanksi. 



JURASSIC CYCADS FRO^VI AVVOMIXG. 



Since the appearance of the first paper of this series, in which all the 

 Jurassic cycads from the Freezeout Hills of Wyoming that were known to 

 me at that time were described and figured,'' two aflditional invoices of 

 material from the same restricted Ijed have Ijeen sent to the National 

 Museum l)y Professor Knight under the same conditions as those relatiuL^ 

 to the first invoice. The formei' of tliese invoices consists of the collection 

 made by me on the occasion of my visit to the locality in 1899, an accovmt 

 of which is given in the first paper, but the full treatment of the collection 

 could not 1)6 then made, as it was necessary to go to press with the paper 

 before the collection could be studied (see p. 387 of that paper). As soon 

 as I found time, however, I had the collection unpacked and the speci- 

 mens numbered according to Professor Knight's instructions. The.se were 

 to continue the numbering from the last number of the first invoice as far 

 as the specimens extended. The numl)ering was on the basis of 500, and 

 the first invoice included Xos. .500.1 to 500.87, although these numbers 

 included .several specimens of fossil wood and one Ijone taken from the 

 same bed, the latter not sent with the cycads. 



Only a few large specimens or nearly complete trunks wei'e found l)y 

 me and the collection consisted chiefly of fragments, many of them quite 

 small, some of them mere chips or splinters. I was careful to save almost 

 everything that could be seen certainly to belong to a cycadean trunk, in 

 the hope that, coming as they did from the same bed, a few of them might 

 be foimd to be the missing parts of incomplete trunks in the first invoice. 

 In this, as will be seen, I was not mistaken, although the result is not so 

 satisfactory as might perhaps have been expected. The number of such 

 small fragments was very large, and when they were all numbered they 

 extended the list from No. 500.88 to 500.687, including therefore, by a 

 curious coincidence, just 600 specimens. 



a Fl. Foss. Arct., Vol. IV, Pt. II (Jura-Fl. Ostsibiriens), pp. 7f)-,S0, pi. xiv, fig.s 6 (ib 6d 

 (■Twentieth Ann. Rep. U. S. Geol. Surv., Pt. II, 1900, pp. 382-417, pi. lx.x-cl.x.xvii. 



