302 Bibliography. 



13. Europe, between the early tertiary and the historic period. 



14. Iadia, Australia, and New Zealand, during the tertiary period. 



15. South America in the same era. 



16. General results of geological investigations. 



If then our readers are disposed to enquire for the cui lono ? of the 

 present work, the answer shall be given by the author himself in his 



illus 



Preface, which has the rare excellency of brevity as well as truth and 

 candor. " The object of this work is to communicate, in a simple form, 

 to the general reader, the chief results of Geological Investigation. No 

 detailed account of particular districts, no minute statements with re- 

 gard to peculiarities of structure, exhibited in various formations, or in 

 their fossil contents, must therefore be expected ; and on the other 

 hand, the reader will be spared as far as possible, the mere technical- 

 ities of the science, while being informed of the views deduced from 

 the study of them. The author hopes that if in thus endeavoring to 

 communicate definite ideas concerning the ancient history of the earth 

 and its inhabitants, he shall be found not to express with perfect accu- 

 racy, the whole amount of what is known in any department of geo- 

 logical science, his attempt may yet be viewed favorably, as a fair 

 sketch of such history, at least in its broad outlines." 



An attentive perusal of Prof. Ansted's work., satisfies us that he has 

 ably fulfilled his own views. He has produced an attractive and val- 

 uable volume, in which he has posted up the most recent discoveries, 

 and presented also some peculiar views of his own, differing in some 

 respects from those generally received. 



2. Natural Philosophy for the use of Schools and Academies, i 

 trated by numerous Examples and appropriate Diagrams ; by Hamil- 

 ton L. Smith, A.M. Cleveland, Ohio, 1847. 12mo, pp. 352. 



This is a very meritorious production, marked by sagacity and sound 

 science. Designed for the purposes of elementary instruction, it claims 

 no other merit than that of a successful inculcation of the established 

 principles of natural philosophy : and this merit it possesses. Th e 

 author has a happy faculty of presenting his subject in an attractive and 

 lucid form, and the method of the book is very well suited to the object 

 in view. He is obviously familiar with the present stale of his sci- 

 ence, and teaches only a selection of his knowledge. Only one who 

 is thoroughly acquainted with a science, is able to write a useful ele- 

 mentary work upon it. No notion is more absurd, than that one who 

 knows little of a subject is fit to write books for those who know now- 

 mg. Such is not our present author. 



3. Hints to Young Architects, calculated to facilitate their Pra^' 

 cal Operations ; by George Nightwick : and with Additional Notes 

 to persons about building in the Country ; by A. J. Downing- W« 

 York and London. Wiley & Putnam : 1847. 8vo, pp. 157. 



Mr. Downing has established so desirable a reputation in all that r 

 lates to rural life and domestic architecture, that his works have of 

 come standards not only in this country, but in Europe also. Iheo 

 ject of the present work is purely practical, and it contains much use 

 information and specific detail of construction for those about to Mi- 

 llie American editor has added among other things a well written 

 troductory chapter, entitled, » When to build, what to build, and no 



