I 



1 60 Miscellaneous Intelligen ce. 



numLer of comets and nebiilre are figured, nnd nltlioxigli but wood en- 

 gravings, they are nearly equal to the best on steel. The wort com- 

 mences with the general principles of physical astronomy, which occupy 

 Part I. Part II embraces Descriptive Astronomy ; Part III, Sidereal 

 Astronomy ; Part IV, Practical Astronomy, treating of the principles and 

 construction of telescopes and other instruments; Part V, contains a 

 Treatise on the Globes ; Part VI, the History of Astronomy. The plan 

 of the work is on the system of questions and answers, which is conven- 

 ient for teachers, and is so well carried out as to have scarcely any of the 

 objections usually urged against the method. 



13. The Testimony of the JRocks^ or Geology in its hearings on the 

 Ttvo Geologies^ natural and revealed ; by Hugh Millkr. 500 pp., 12mo. 

 — This work is too well known and fully appreciated to require remark 

 in this place. We wish it may" be universally read, as the hist message of 

 one who knew by experience the profound truths and harmonies of the 

 two revelations — the testimonv of the rocks and of the written word. | 

 The title page presents the theme of the work in a sentence from Job, 

 " Thou shalt be in league with the stones of the field." 



14. A Manual of the Detection of Poisons, by Medico- che7nical analy- 

 sis ; by Dr. F. J. Otto, Prof. Chem. in Caroline College, Brunswick ; 

 translated from the German, with notes and additions, by Wm, Eldkr- 

 HORST, M.D., Prof Chem. Rensselaer Polytech. Inst., Troy, N. Y. New 

 York: 185Y. 178 pp., 12mo. H. Baillierc.— A valuable little work by 

 an eminent German chemist, in which a large subject is brought judi- 

 ciously into a small compass. Prof. Elderhorst has made some additions 

 to the original treatise. 



15. Elements of Chemistry, including the Ajyjlications of the Science 

 in the Arts; by Thomas Graham, F.R.S.L. and E., late Professor of 

 Chemistry in University College, London. 2d ed., revised and enlarged, 

 edited by A. Watts, 13.A., F.C.S. Vol. H, Part H. New York : 1857. 

 C. E. Bailliere. — This is a handsome reprint of the well known chemistry 

 of Professor Graham. 



16. Chemical Problems and Reactions^ to accompany Stockhardt's 

 Elements of Chemistry; by J, P. Cooke, Jr. 130 pp., 12mo. Cam- 

 bridge: 1857. — In the usual method of teaching chemistryj the knowl- 

 edge gained consists usually of vague ideas and incoherent facts, or if 

 clear and intehigent, it fails o? that thoroughness which is needed to ren- 

 der it an instrument in the hands of the student. Professor Cooke of 

 Harvard, has done a good service to the science in the publication of this 

 book of Problems and Reactions- The student is led directly into the 

 subject of equivalents and chemical physics. By definite problems,, the 

 learner is made to calculate the results of reactions, the yield of one pro- 

 duct or another, and the proportions for saturation in various cases, the 

 reduction of weights and measures, the weight of air and gases of spe- 

 cific amounts under difterent states of barometric pressure and tempera- 

 ture, the use of symbols, and modes of deducing formulas. The work 

 was prepared for his own classes at Cambridge, but will be found useful 

 wherever chemistry is taught. 



OniTCARY. — A. DuFRENOY, the distinguished French mineralogist, and 

 bead of the School of Mines, died at Paris, in March last* 



