150 Bibliography. 



cidence in the discovery of this satellite by Mr. Bond, at Cambridge, 

 and by M. Lassell, at Starfield near Liverpool, England, (the first 

 on the 16th, and the second on the 18th of September,) leaves to each 

 the credit of an original discoverer, although the honor of priority 

 plainly belongs to Mr. Bond. We are informed in this Appendix, that 

 Mr. Bond is preparing a memoir to be presented to the Academy at a 

 future day, containing in full the observations of Saturn, his rings, and 

 satellites, made at the Observatory in Cambridge during the past year. 



4. An Elementary Treatise of Spherical Geometry and Trigonom- 

 etry; by Anthony D. Stanley, A.M., Prof, of Mathematics in Yale 

 College. 122 pp. 12mo. New Haven, 1848. We may commend this 

 Treatise to the various institutions of our land, as an excellent manual 

 for instruction in spherics. The definitions are clear and direct, and 

 the demonstrations extend over as wide a range as can be desired for 

 the general student. The first 54 pages are occupied with spherical 

 geometry, and the remainder with spherical trigonometry. 



5. The Philosophy of Geology; by A. C. G. Jobert, late editor of 

 the • Journal de Geologie,' one of the authors of ' Recherches sur les 

 Ossemens Fossiles du Puy-de-Dome.' 2d ed. 184 pp. 18mo. London 

 and Paris. 1847.— Also, Ideas or Outlines of a new System of Phi- 

 losophy ; by A. C. G. Jobert, &c. 141 pp. 18mo, London. 1848.— 

 Mr. Jobert in his Philosophy of Geology, commences by combating the 

 doctrine of the eternity of the actual course of nature, and the view 

 that the idea of a cause is based on the invariability of an antecedent 

 and its consequent. He discusses and rejects the Huttonian dogma that 

 the granitic material of our globe is but a re-fusion of previous rock- 

 material, a theory which implies an eternity of causation. The author 

 proceeds to a course of argument with reference to the relations and 

 origin of the various strata of the globe ; and although we cannot agree 

 with him in all his steps, we fully assent to the result of the whole— 

 that the phenomena of existences are not the consequence of an eter- 

 nal law of invariable revolutions, but the acts of a Supreme Providence, 

 wno has directed matter in its transformations, and left, from period to 

 period, visible traces of his power, his solicitude, and his munificence. 

 1 he Second work on Ideas, continues the same topic, being an exam- 

 ination of the natural and philosophical ground of the idea of a God. 



6. Observations on Belemnit.es and other Fossil Remains of Cepha- 

 l °Poda, discovered by Mr. Reginald Neville Mantell, C.E., in the 

 Oxford clay near Trowbridge, in Wiltshire ; by Gideon Algernon 

 Mantell, Esq., LL.D., F.R.S., F.L.S., and Vice President of the | 



Geological Society.— This memoir, containing eleven pages, is publish- H 



d in the Philosophical Transactions, Part II, for 1848, and is illustrated 

 by three quarto lithographic plates. Much light is here thrown upon 

 the structure of the animal of the Belemnite, now known to be a ceph- 

 alopodous mollusc. It is almost unnecessary to say that the memoir 

 is characterized by the well known ability and accuracy of the distin- 

 guished author. 



1. A Memoir on the Structure of the Maxillary and Dental organs 

 of the Iguanodon; by G. A. Mantell, &c— This memoir is also 

 from the Philosophical Transactions for 1848, Part II. It occupies 

 ten pages, with four lithographic plates, one of which is folded and 







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