152 Scientific Intelligence. 



2. Iowa Geological Survey: Vol. VII, Annual Report, 1896, 

 with accompanying papers; pp. 1-555, plates i-xi, figs. 1-81, and 

 six folded maps. Samuel Calvin, State Geologist, 1897. — The 

 volume contains the ordinary administration reports with special 

 papers on the detailed geology of the counties of Johnson, 

 Cerro Gordo, Marshall, Polk, Guthrie and Madison. There is 

 also an elaborate report on the Artesian Wells of Iowa, by W. 

 H. Norton, representing pp. 113-428 of the volume but bound 

 separately. As the records of the wells have been preserved and 

 carefully correlated, they furnish evidence of the underground 

 structure and variation in thickness of the several beds penetrated 

 not previously published. h. s. w. 



3. La face de la Terre (Das Antlitz der Erde) par Ed. Suess, 

 traduit . . . et annote sous la direction de Em. de Margerie, 

 avec une preface par Marcel Bertrand. Tome 1, pp. i-xv, 1- 

 835 ; 2 colored charts, figs. 1-122. (Armand Calin & Cie.) Paris, 

 1897. — This translation into French of Suess's classical work opens 

 to many English readers, as well as French, a rich storehouse of 

 structural geology. The French translation has been made by 

 M. Em. de Margerie and eight distinguished specialists. Many 

 notes, especially in the way of bringing the bibliographic refer- 

 ences up to date, have been made by the editors, and 76 of the 

 122 figures are new to this edition. 



The book is divided into four parts, two of which appear in the 

 present volume. The first treats of the movements ot the outer 

 crust of the globe, including an exhaustive study of the evidences 

 of the traditional deluge in the region of the lower Euphrates ; the 

 causes (earthquakes), and the nature of the earth movements 

 resulting are discussed. Dislocations, volcanoes, and a discussion 

 of the relations between the movements affecting our senses and 

 the phenomena of dislocation close this part. The second part 

 treats ot mountains and the structure and plan of mountains, 

 more fully those of southern Europe, but, also, clearly those of 

 the chief mountain regions of the globe are described and well 

 illustrated. The two remaining parts on ocean and land surfaces 

 are reserved for a second volume. 



American geologists will find here brought together a vast 

 amount of accurate details regarding, particularly, European 

 structural geology, the original sources for which are scattered 

 widely through geological literature and thus out of reach of any 

 but the professional geologist. h. s. w. 



4. Boletin del Instituto Geologico de Mexico. Nums. 7, 8 y 9. 

 El Ilinera de Pachuca. 183 pp. Mexico, 1897. — The latest 

 publication of the Geological Institute of Mexico, under the able 

 directorship of Dr. Jose G. Aguilera, is a quarto volume of 

 183 pages, with numerous plates and other illustrations, devoted 

 to a discussion of the mineral deposits of the Sierra de Pachuca. 

 The description of the region, together with an excellent half- 

 tone plate, gives a very clear idea of the general physiographical 

 and geological relations. The various systems of mineral veins 



