Bibliographical Notices, 161 



of those persons who are anxious to furnish satisfactory data for the 

 ehicidation of questions connected with the general and special struc- 

 ture of rocks, such as dip, strike, divisional planes, faults, dykes, veins, 

 cleavage, &c. One page only, and that in the Appendix, is devoted 

 to the constituent ingredients of rocks, — a subject too little attended 

 to, and for which might have been found a fitter and ampler space in 

 the body of the work. A careful and useful glossary is added. 



Without entering into any detail respecting the geological descrip- 

 tions in this work, as regards the mineral character, distribution, and 

 fossils of local deposits, we can but advert to a novel and extremely 

 useful feature presented by Prof. Phillips's Manual. We allude to 

 the lists of genera of organic remains occurring in each group or 

 terrain of the geological formations. These lists are so arranged and 

 printed that the genera peculiar to certain strata are at once recog- 

 nizable, and the numerical proportion of genera and species are seen 

 at a glance. In our notice of Morris's * Catalogue of British Organic 

 Remains ' in Annals, vol. xv. p. 54, we recommended that such tabu- 

 lated lists of genera and species should be made under the super- 

 intendence of the author of that work. Prof. Phillips, however, has 

 with considerable labour eliminated the materials required for such 

 categorical arrangement, in conformity with the geological classi- 

 fication adopted in that work, and has thus, with excellent judgement, 

 enabled the student to comprehend at one view the numerical pro- 

 portions, in family, generic, and specific groupings^ of animal and 

 vegetable life during the several geological periods ; and those inter- 

 ested specially in the lower palaeozoic rocks will find at p. 1 22 a 

 table exhibiting the generic relations of the then existing great divi- 

 sions of animal life during the Cambrian and the Lower and Upper 

 Silurian periods. 



One excellent feature of Mr. Phillips's book consists of the many 

 well-executed illustrations of landscape-scenery illustrative of topogra- 

 phical geology. We wish that we could equally approve of the cuts 

 intended to portray the characteristic fossils. Generally speaking, 

 the imperfection of the specimens selected and the want of accuracy 

 in the drawing render the majority of the figures almost useless for 

 comparison. 



This work, having features of its own both in palseontological and 

 geological aspects, and being well stored with modern information, 

 and characterized by the experience and philosophic opinions of the 

 author, takes a high rank among elementary works on geology. As 

 a text-book, embodying the real methods of geological investigation, 

 this edition necessarily offers more complete evidence of the unity of 

 the laws of nature, and of the correctness of the principles of geology 

 enunciated in the previous edition, — principles which amidst all the 

 activity of research are still unaltered, the methods of research and 

 the lines of reasonhig remaining the same. 



Much remains to be done ; the geologist has still great questions 

 before him waiting for solution ; his labours will be well directed and 

 much lightened by such manuals of the science as those provided by 

 Lyell, Mantell, Ansted, and Phillips. 



Ann. ^ May, N. Hist. Ser. 2. Vol.xwm, 11 



