76 Miscellaneous Bibliography. 



Again, "Oolite is a limestojio containing [should be, consisting of, 

 although the bad drawing given sustains the author] numerous, 

 small rounded [add concretionaxy] grains, resembling the roe of a 

 fish." He says that, " The coral aniiual thrives best in pure water. 

 about a hundred feet in depth," in place of the fact that reef-form- 

 ing corals thrive well at low-tide level and at all depths below dowi 

 to one hundred feet, while other coral animals occur at depths ex- 

 ceeding a thousand feet. The author attributes the " continually 

 vibrating to and Iro" of the continent, which finally culminated in 

 the folding of the rocks producing the Appalachians, to ''the tre- 

 mendous pressure of the two oceans during the Carboniferous age." 

 Bad hydrostatics, this. A drawing of an Ichthyosaurus represent* 

 him spouting like a Right Whale ! 



3. A Text BooJc of Elementary Chemistry, Theoretical and h- 

 organic; by George F. Barker, M.D., Professor of Physiological 

 Chemistry in Yale College, New Haven, Conn, vi and 342 }>p. 

 12mo. New Haven, 1870. (C. C. Chattield & Co.)— Prof. Barker 

 has produced a compact Elementary Text Book, the dimensions of 

 which adapt it to the use of schools, and which is the first in our 

 language wherein "Modern Chemistry" is presented systemati- 

 cally. The style of the work is concise and animated, the iUustn- 

 tions are fresh, the typography is good, and it cannot fiil ot a 

 hearty w^elcome among our teachers and learners. 



4. The American A'aturalist, a pujmlar Illustrated Magazine oj , 

 Natimd History. (Salem, Mass. $4.00 a year).— This monthly , 

 Magazine of Naturalist History has won for itself a high place | 

 among the Journals of the world. It knows how to populariK 

 science without degrading it. Many of its articles are by someot 

 the best zoologists of the country, and contain the results ol 

 original observation. The illustrations are always excellent. 



A Monograph of N. A. Astacida;. by Dr. Hoimiinn A. Hagen; No. HI, of the 

 lUustrated Catalogue of the Museum of Comp.irative ZooIorv of Harvard College- 

 (Published by order of the Legislature of Massachusetts) 112 pp. roy. svo, ^wi 

 11 plates. Cambridge, 1870. To be noticed in our next No ^ ,, ^,. 



Students' Manual of Comparative Anatomy, and Guide to Dissection, by 0. nj 



hers, Oil City, Pa. The fir.t nu..- 

 ovember. Price three dollars^a^g; 



1 Publishers, Oil 



pp. 8vo. Central City, 1870. 



. Monograph of the ilcedinidai : or. Kmj 



■anau to the Zoological Society of Lonc 



pleted which will soon be. Intending subscribers are respectfully requesteu 

 send their names to the author, at "The Zool-gical Society of L-ndon,' H ^^■ 

 over Square, London, W. Also, uniform vvi:h the above, A Monograph of th.'i^l 

 l?v J*' ^^- S'^^nsorial Barbetsby C. H. T. .Marshall, F.Z.S., and G. F. L. Mar-C 

 t.A.h. To be completed in nine parts. Price 10s. 6d. each. 



