356 BakewelVs Introduction to Geology. 



Nor is it a less philosophical part of the study of con- 

 chology to endeavour to trace the structure, and investigate 

 the uses, of the animals which inhabit recent shells. Since 

 the Almighty has formed nothing in vain, these creatures, 

 however low in the scale of being, are destined to perform 

 particular service in the great plan of creation. 



In this text book the systems of Linnaeus and Lamarck 

 are placed before the reader, for his examination and choice. 

 The comparative view of the genera afforded by the tables 

 commencing at p. 53., accompanied by more than 350 figures 

 in illustration of their various forms, will, we think, lead the 

 student, on reflection, like the experienced author of the 

 work, to adopt the extended generic divisions and scientific 

 arrangement of the French conchologist. Shells, from their 

 beauty .ancj, delicacy of colour, the elegance and endless va- 

 riety of their shape, and the ease with which they are pre- 

 served and arranged, are particularly adapted to the notice of 

 pur^jEair and intelligent females; and the work before us is a 



cheap and useful manual, worthy extensive support. 



j miyjjs o« iuovpa ?.^oi9<u ti n jBrtrte^ ,83nJnuoa 



BaJcexsoell, Robert : An Introduction to Geology : intended to 

 convey a practical Knowledge of the Science, and comprising 

 the most important recent Discoveries ; with Explanations 

 of the Facts and Phenomena which serve to confirm or 

 invalidate various Geological Theories. The fourth edi- 

 tion, greatly enlarged, with additional plates and numerous 

 woodcuts. 8vo, 589 pages. London, 1833. 21s. 



It may be deemed unnecessary to do more than notice the 

 appearance of a new edition of An Introduction to Geology 

 which has been for many years favourably received. A former 

 edition was translated into German, and the third edition was 

 republished in America by Professor Silliman; such, however, 

 has been the rapid progress of the science in the last four 

 years, that, in recording the most important discoveries, and in 

 stating the conclusions to which they lead, the present volume 

 assumes in many respects a new character. It contains nearly 

 one third more letter press, being printed closer and in a fuller 

 page. In the First Volume of our Magazine, November, 1828, 

 p. 353., we gave an analysis of the third edition of this work, 

 to which we refer the reader, and shall confine our remarks to 

 those parts of the present edition which are, strictly speaking, 

 new, and illustrate the progress of geology. The first article 

 is entitled preliminary observations on living illustrations of 

 fossil conchology, with a plate containing 18 figures, chiefly 

 relating to chambered shells, of which two species are existing. 

 The author recommends to scientific voyagers to examine 



