468 Scientific Intelligence. 



was delivered April 4, 1804. In 1805 he went abroad to fit him- 

 self more fully for the duties of his professorship. Silliman 

 "through his own efforts as a teacher, but more particularly 

 through his personal influence as a writer and lecturer, probably" 

 did "more to advance the science of geology than any man of 

 his day." 



From Silliman as the first teacher of geology in America, the 

 history rapidly passes to Maclure, " the father of American 

 geology." He produced the first geological map of the United 

 States in 1809. Only three other geological maps had been thus 

 far published. The next prominent figure is Parker Cleaveland, 

 appointed in 1805 to the professorship of mathematics, natural 

 philosophy, chemistry, and mineralogy in Bowdoin College, and 

 the author of " Elementary Treatise on Mineralogy and Geol- 

 ogy," 1816. It "was the first attempt made in America at a 

 systematic treatise on Mineralogy." 



In 1818 the American Journal of Science was founded by 

 Benjamin Silliman, " and a perusal of the numbers from the date 

 of issue down to the present time will, alone, afford a fair idea 

 of the gradual progress of American geology." In this same year 

 appeared S. L. Mitchill's " Observations on the Geology of North 

 America," Amos Eaton's " Index," and Edward Hitchcock's first 

 geological paper. These various publications make the year 1818 

 stand out prominently as one of the great milestones in American 

 geology. 



The first Geological Society of America was organized in 1819, 

 in the philosophical room of Yale College, with Maclure as presi- 

 dent. In looking over the more prominent members of this 

 society, one is struck by the many names now among the fathers 

 of American geology ; as Gibbs, Silliman, Cleaveland, Akerly, 

 Bruce, S. L. and J. F. Dana, Dewey, Eaton, Hitchcock, Mitchill, 

 Rafinesque, Schoolcraft, Emmons, Harlan, Lea, Morton, Troost, 

 and Vanuxem. 



Among the admirable features of this book, in addition to the 

 many portraits, are the maps giving the routes of travel of the 

 various expeditions into the then unknown country ; as Schoolcraft, 

 1820, 1821, Long, 1819-20, 1823, Stansbury, 1849-50, Foster and 

 Whitney, 1847-49, Marcy and Shumard, 1849-52, Pacific R. R. 

 Surveys, 1853-56, Ives and Newberry, 1857-59, Raynolds, 1859- 

 60, etc. 



This work, much of which is written in a vein of dry humor, 

 is so full of interest and its presentation is so admirable that no 

 geologist can afford to be without it. Its preparation has been 

 a labor of love, and has been mainly accomplished out of official 

 hours during the past several years. It is a worthy companion 

 volume to Geikie's " The Wonders of Geology." c. s. 



2. Revision of Paleozoic Insects ; by Anton Handliesch. 

 Proc. U. S. Nat. Mus., xxix, 1906, pp. 661-820.— This work is 

 not only a complete study of the entire collection of American 

 Carboniferous and Permian insects (about 750 specimens) in the 



