248 



BEPORT OF NATIONAL MUSEUM, 1914. 



Knowltox, F. II. — Coiitiuued. 



throughout, and embraces 17 

 species, only one of which is 

 described as new. This flora is 

 compared with linown Jurassic 

 floras of various parts of the 

 world, and the conclusion is 

 reached that it is not only un- 

 doubtedly Jurassic in age — 

 which had previously been ques- 

 tioned — but belongs either in the 

 upper part of the Middle Juras- 

 sic or Brown Jura, or the ex- 

 treme lower part of the Upper 

 Jurassic or White Jura — that 

 is to say it is probably not 

 older than the Bathonian, and 

 certainly not younger than tbe 

 Oxfordian. Several pages are 

 devoted to a discussion of the 

 geographic range of Jurassic 

 floras in general, their means 

 and avenues of dispersal, and 

 the probable climatic conditions 

 that prevailed in Alaska at the 

 time this flora flourished there. 



Maynakd, T. p. (See under R. S. 

 Bassler.) 



Ohern. D. W. ( See under R. S. Bass- 

 ler.) 



Petrunkevitch, Alexander. A mono- 

 graph of the terrestrial Paleozoic 

 Arachuida o^' North America. 



Trans. Connecticut 

 Acad. Ai'ts and Sci., 

 18, June, 1913, pp. 

 1-137, pis. 1-13, flgs. 

 1-88. 

 This monograph constitutes a 

 revision of all known North 

 American Paleozoic terrestrial 

 arachnids. In addition, 24 

 species and 13 genera are de- 

 scribed for the flrst time, and 

 2 new families and one new 

 order are established. Valuable 

 information as regards the mor- 

 phology and phylogeny of the 

 Arachnida is given. The paper 

 is based in part on material in 

 the collection of the U. S. Na- 

 tional Museum, which contains 

 many of the described types of 

 these fossils, including 9 of the 

 new species. 



Powers, Sidney. (See under Hervey 

 W. Shimer.) 



SciircHERT, Charles. (See under R. 

 S. Bassler.) 



Shimer, Hera-ey W., and Sidney 

 Powers. A new sponge from the 

 New Jersey Cretaceous. 



Proc. U. 8. Nat. Mus., 

 46, No. 2019, Dec. 6, 

 1913, pp. 155, 156, 

 pi. 7. 

 Describes the new species of 

 fossil sponge Coeloptychiumt 

 jerseyensc from the Mount Lau- 

 rel-Navesink beds of the Cre- 

 taceous at Atlantic Highlands, 

 New Jersey. 



Shufeldt, R. W. Review of the fossil 

 fauna of the Desert Region of Ore- 

 gon, with a description of additional 

 material collected there. 



BuU. Amer. Mu-t. Nat. 

 Hist., 32, Art. 6, 

 .July 9, 1913, pp. 

 123-178, pis. 9-43. 

 Reviews the fossil fauna of 

 the Christmas Lake region of 

 Oregon, with especial reference 

 to the extinct birds, describing 

 three new species. Discusses 

 and figures a small collection of 

 avian remains in the V. S. Na- 

 tional Museum. 



Further studies of fossil birds 



with descriptions of new and extinct 



species. 



Bull. Amei: Mus. Nat. 

 Hist., 32, Art. 16, 

 Aug. 4, 1913, pp. 

 28,5-306, pis. 51-59. 



Describes Diatryma ajax, 

 Palceophasian us meleagroides, 

 Aquila antiqua, A. ferox, A. 

 lydekkeri, Palwospixa hatcheri, 

 and Proictinia gllmorei, all new 

 species, two of which belong to 

 the National Museum collection. 

 Notes on many unidentified 

 forms are inserted at various 

 places throughout the article. 



Fossil feathers and some here- 



tofore undescribed fossil birds. 



.Tourn. OeoL, 21, No. 7, 

 Oct.-Nov.. 1913, pp. 

 628-652, flgs. 1-12. 



Describes and fl^ures all 

 available fossil bird feathers. 

 Two new forms, Hehe schu- 

 chertl and Talavis tenuipes are 

 named. One specimen, belong- 

 ing to the National Museum, is 

 described and figured. 



