Lied!i Contributions to Geology, 383 



Lmdlei)^ Ph.D.^ F.R.S. &c. : Ladies' Botany: or a Familiar 

 Introduction to the Study of the Natural System of Botany. 

 8vo, 302 pages, and 25 plates. London, 1834. 165. 

 This is another addition to the polite literature of botany ; 

 and it is a very welcome one, because such a one has been for 

 some time really wanted, and because it supplies the want in 

 (we conceive, from a glance through the work) a clever and 

 agreeable manner. The office of the present work is not so 

 much like that of the work above, to introduce to ideas which 

 appertain without particular relation to the investigation of 

 their structure ; but to lead us through the outlines or general 

 course of this investigation, and to guide us in an agreeable 

 narrative, and not needlessly technical manner, to that dominion 

 in knowledge among plants which botany alone can give. The 

 plan adopted comprises twenty-five letters, each devoted to the 

 explanation, in some detail, of the features which mark the dis- 

 tinctions of the more obvious of the natural orders, and to each 

 of the letters is prefixed a plate, in which the parts described 

 in the given characteristics of the orders, and specimens of the 

 plants from which they are taken, plants for the most part very 

 easily obtainable, are exhibited. 



Lea Isaac ; a Member of the American Philosophical Society, 

 &c. : Contributions to Geology. Philadelphia, 1833. 8vo., 

 227 pages; and six plates which bear tinted figures of 224* 

 species of fossil shells, and four fossil remains of species of 

 fishes ? Carey, Lea, and Blanchard, Philadelphia. 

 " 1 hope to add some new facts contributing to the develope- 

 ment of the geology of our country. Little, comparatively, 

 has yet been accomplished in defining, with perfect accuracy, 

 most of the beds of the great geological masses of our ex- 

 tended formations ; and these contributions are presented with 

 a view to assist, though in a small degree, in the accomplish- 

 ment of an object desirable to every American geologist, a 

 perfect and thorough knowledge of American geology." — 

 Preface, 



The subjects of the work are, an " introduction," in which 

 an abstract is presented of the conditions and characteristics 

 of the different formations recognised in general geology: 

 then, the " tertiary formation of Alabama:" this is the main 

 of the subjects, and comprises descriptions and illustrations 

 of more than 200 species of shells, and those of some Polypi : 

 then, descriptions and illustrations of " new tertiary fossil 

 shells, from Maryland and New Jersey." In relation to the 

 two last treatises, the author has, in his preface, this remark, 

 " Presuming the species to be new, I have endeavoured to 

 make minute descriptions, accompanied by faithful figures of 



