48 A CENTURY OF SCIENCE 



results of Dr. Beaumont and of Professor Robley Dungli- 

 son, to whom samples were submitted, are given in full 

 in the life of Beaumont by Jesse S. Myer (St. Louis, 

 1912). The interest of the matter, so far as the Journal 

 is concerned, is chiefly because Dr. Beaumont selected 

 Professor Silliman as a chemist to whom samples for 

 examination were also submitted. An account of Silli- 

 man 's results is given in the Beaumont volume referred 

 to (see also 26, 193, 1834). Desiring the support of a 

 chemist of wider experience in organic analysis, he also 

 sent a sample through the Swedish consul to Berzelius in 

 Stockholm. After some months the sample was received 

 and it is interesting to note in a perfectly fresh condi- 

 tion; it is to be regretted, however, that the Swedish 

 chemist failed to add anything to the results already 

 obtained in this country (27, 40b, 1835). 



The above list, which might be greatly extended, seems 

 to leave little ground for the implied criticism replied to 

 by Silliman as follows (16, p. v, 1829) : 



A celebrated scholar, while himself an editor, advised me, in 

 a letter, to introduce into this Journal as much "readable" 

 matter as possible : and there was, pretty early, an earnest but 

 respectful recommendation in a Philadelphia paper, that Litera- 

 ture, in imitation of the London Quarterly Journal of Science, 

 &c. should be in form, inscribed among the titles of the work. 



The Second, Third and Fourth Series. 



The SECOND SEEIES of the Journal, as already stated, 

 began with January, 1846. Up to this time the publica- 

 tion had been a quarterly or two volumes annually of two 

 numbers each. From 1846 until the completion of an 

 additional fifty volumes in 1871, the Journal was made a 

 bimonthly, each of the two yearly volumes having three 

 numbers each. Furthermore, a general index was given 

 for each period of five years, that is for every ten 

 volumes. 



Much more important than this change was the addi- 

 tion to the editorial staff of James Dwight Dana, Silli- 

 man 's son-in-law. Dana returned from the four-years 

 cruise of the Wilkes Exploring Expedition in 1842; he 

 settled in New Haven, was married in 1844, and in 1850 



