A GUIDE Eat TO THE DETERMINATION OF ROCKS; BEING AN INTRODUCTION TO LITHOLOGY. BY EDOUARD JANNETTAZ, Docteur es-Sciences. TRANSLATED FROM THE FRENCH BY GEO. W. PLYMPTON, C.E., A.M., 父 NEW YORK: D. VAN NOSTRAND, PUBLISHER, 23 MURRAY AND 27 WARREN STREETS. 1877. TRANSLATOR'S PREFACE. The following pages have been translated with a view to supplying students with a desirable supplement to the ordinary academic course of Geology, at the same time affording an easy introduction to the larger treatises on Lithology. No changes in the plan of the original work have been attempted. The English synonyms for the rock names have been taken mostly from Von Cotta's "Rocks Classified." The Appendix is a translation from "Cours Elémentaire de Géologie Appliquée," by M. Stanislas Meunier. The thoroughly practical character of this little treatise, together with the simplicity of the methods of examination, constitute, it is believed, a sufficient claim to the favorable notice of teachers and learners of this department of science. |