522 Reviews—Prof. O. C. Marsh’s 
REVIHWS. 
T.—Oponrornirnes: A Monocrapri on THE Extrncr TootuEp Brrps 
or Norra America. By Prof. O. C. Marsn, F.G.S., of Yale 
College. Memoirs of the Peabody Museum of Yale College, New 
Haven, Connecticut, 1880. Royal 4to. pp. 202, with 34 Plates 
and 40 Woodcuts. 
HE science of Paleontology is deeply indebted to Professor 
O. C. Marsh for his numerous and valuable contributions to 
its literature on the American Continent. 
What Professors Owen and Burmeister have done towards the 
elucidation of the South American Pleistocene Edentata—Professor 
Marsh has accomplished for a far wider range of forms and of forma- 
tions on the North American Continent. 
So long ago as February, 1876, we published an interesting ac- 
count in the pages of the GrotocrcaL Macazrne (Decade II. Vol. JIL 
pp- 49-43, Plate II.), written by Prof. Marsh himself, of these singu- 
lar toothed birds, the Ichthyornis dispar, Marsh, the Hesperoruis 
regalis, Marsh, and the Apatornis celer, Marsh, all from the Cretaceous 
beds of Western Kansas. 
The work before us is the long-anticipated and exhaustive Mono- 
graph on these toothed birds, and certainly, as a scientific publication, 
it surpasses any which have already appeared devoted to palzeon- 
tology. 
Would that our own Government were equally alive to the in- 
terests of science! Painful indeed is the comparison between the 
Memoirs and publications of our own Survey and those like the 
“Geological and Geographical Atlas of Colorado,” by Dr. F. V. 
Hayden,' with its magnificent maps and plates—‘“ The United States 
Geological Exploration of the Fortieth Parallel, by Clarence King,” ? 
with 28 plates, 12 analytical maps, and 800 pages of letterpress— 
or, Prof. Marsh’s present magnificent Monograph, intended to form 
Vol. VIL. of the Publications of the Survey of the 40th Parallel. 
Subjoined is an alphabetical list of all the species of birds now known from the 
Cretaceous deposits of North America. Many of these are represented, at present, 
only by fragmentary remains, their near affinities are therefore more or less uncertain. 
The list contains eight genera and twenty species. 
Apatornis celer, Marsh, 1873. Icththyornis lentus, Marsh, 1877. 
Baptornis advenus, ,, 1877. ——— ener, op ous 
Graculavus velox, ALS A5 ———._ validus, 39 oS 
pumilus, ,, x victor, 37 VLSGE 
Hesperornis regalis, ,, $5 Laornis Edvardsianus, ,, 1870. 
eC ASSES ee SiO Paleotringa littoralis, ,, a 
gracilis, ,, He vagans, ay eLeiios 
Ichthyornis dispar, ,, 18738. ————  vetus, 3 SOs 
agilis, Ae pee) Telmatornis priscus,  ,, yh 
auceps, 5, l8i2k ———__ affinis, ee ss 
The present volume is the first of a series of Monographs, de- 
signed to thake known to science the Extinct Vertebrate Life of. 
North America. In the investigation of this subject, the writer 
: See Gror, Mac. 1878, Decade II. Vol. V. p. 365. 
* Bee Guot, Mac. 1879, Decade II. Vol. VI. p. 467. 
