A New WILEY Edition 



Second Edition, Revised 



IGNEOUS ROCKS 



Volume I -COMPOSITION, TEXTURE and CLASSIFICATION 

 By the late Joseph P. Iddi^gs 



IN this uew edition of Volume I of Dr. Iddings' standard book " IGNEOUS 

 ROCKS," which was completed just prior to the death of the author, 

 important changes have been made in the table of Melting Points of Pyro- 

 genetic Minerals, and in the chapter on Quantitative Classification of Igneous 

 Rocks, based on the most up-to-date practice. 



Since its original publication, in 1909, this book has been recognized as an 

 authoritative work in its especial field, and as such has enjoyed a wide dis- 

 tribution. 



465 pages — 130 figures, 2 colored plates — $5.00 postpaid. 



By the same Author 



IGNEOUS ROCKS, Volume II— DESCRIPTION and OCCURRENCE 



685 pages— 20 figures — 8 maps — over 2000 chemical analyses 

 of rocks — $6.00 postpaid. 



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Montreal, Can.: 

 Renouf Publishing Co. 



ajs-12-20 



