310 RECORD OV SCIENCE FOR 188? AND 1888. 



are foimd notes "On tbe Classification of Sporangites,^^ p. 84 ; "On the 

 Natnre and Affinities of Ptilophyton,'^ p. SG ; " On Tree Ferns of the Erian 

 Period," p. 90 ; "On Parian Trees of the Genus Dadoxi/lon, linger," p. 96 ; 

 "On Scottish Devonian Plants of Hugh Miller and others," p. 98; "On 

 the Geological Relations of some Plant-bearing Beds of Eastern Canada," 

 p. 103; "On the Relations of the so-called 'Ursa Stage' of Bear Island 

 with the Palaeozoic Flora of North America." At the end of chapter 

 IV twenty-seven pages of fine print are devoted to a note "On Charac- 

 ters and Classification of Palaeozoic Plants." In an appendix there are 

 eight pages giving "A Comparative View of the successive Paleozoic 

 Floras of Northeastern America and Great Britain," and a few ])ages on 

 " Heer's latest results in the Greenland Flora." The volume is particu- 

 larly complete in its account of the plants of the Devonian of North 

 America, in which field the author is the chief iiuthority. 



Leo Lesquereux (148) has prepared for the annual report of the Geo- 

 logical Survey of Pennsylvania a short treatise on the " Characters and 

 Distribution of PahTOzoic Plants," in which the plants of the Carbon- 

 iferous system are chiefly discussed. The author also considers the evi- 

 dences offered by plant remains of the physical conditions under which 

 the deposits were formed, and the relations the several geographical 

 tracts of North America in which coal measures appear bore to each 

 other during the Carboniferous age. 



BIBLIOGRAPHY OF NORTH AMERICAN PALAEONTOLOGY, 1887, 1888. 



LIST OF ABBREVIATIONS. 



Amer. Geol. — American Geologist. Minneapolis. 



Jmvr. Joiirn. — The American Jonrual of Science and Arts. New Haven. 



Jmer. Nat. — American Naturalist. Philadelphia. 



Annals. — Annals and Magazine of Natural History. London. 



Ann. N. York Acad. Sci. — Annals of the New York Academy of Sciences. New York. 



Ann. Rep. Geol. Surv. Canad. — Annual Report of the Geological Survey of Cauada. 



Ottawa, Cauada. 

 Ann. Rep. Geol. Surv. Penn. — Annual report of the Geological Survey of Pennsylvania. 



Philadelphia. 

 Ann. Rep. Min. Calif. — Annual Report of the State Mineralogist of California. 

 Ann. Rep. New York State Mns. — Annual Report of the New York State Museum of 



Natural Historj'. Albany. 

 Ann. Rep. State Geologist N. Y. — Annual Report of the State Geologist to the Legisla- 

 ture of the State of New York. Albany. 

 Ann. Soc. Geol. Nord. — Anuales de la Soci6t6 G6ologiqne du Nord. Lille. 

 Arch, do Mns. Nacional do Rio de Janeiro. — Archives do Museum Nacional do Brazil. 



4to. Rio de Janeiro. 

 Bnl. Aincr. Mtts. — Bulletin of the American Museum of Natural History. New York. 

 Hull. Calif. Ac. Sci. — Bulletin of the California Academy of Science. San Francisco. 

 Bull. Denison Univ. — Bulletin of Deuison University. Granville, Ohio. 

 Bull. Mus. Comp. Zool. — Bulletin of the Museum of Comparative Zoology at Harvard 



College. Cambridge, Massachusetts. 

 Bull. N. Brunswick Nat. TTist. Soc. — Bulletin of the New Brunswick Natural History 



Society. St. John, New Brunswick. 



