2 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 58 



Anonymous articles are listed tinder " Anon." which takes its place in 

 the alphabetic sequence. Where more than one article occurs under 

 " Anon." they are arranged chronologically. 



Where deposits in a number of countries are treated in one article, 

 the title is placed under the heading " General." 



Works treating preponderantly of the extraction, handling, and re- 

 duction of tin ores are placed under " Mining and Milling " and 

 " Metallurgy." The lists given under these subjects are not published 

 with the idea that they are complete and no effort has been made to 

 make them so, but as important articles were met, it seemed best to 

 note them, in the hope that even an incomplete list might be of use to 

 many persons who desire only a certain amount of general knowledge 

 upon the subject. The lists may serve, also, as a nucleus for some who 

 Avish to pursue the subject further. 



Headings other than " General " and names of countries form a second 

 alphabetic list which follows the list of countries. 



In the geological portion of the bibliography it is believed that no im- 

 portant paper upon tin appearing up to the middle of 1908 has been 

 omitted. Following this prefatory note will be found the abbreviations 

 used for journals referred to in the work. The bibliography is classified 

 as follows: I, By Countries; II, General; III, History; IV, Metallurgy 

 and Chemistry; V, Mineralogy; VI, Mining and Milling; VII, Statis- 

 tics. It is thought that the exhaustive index prepared by Mr. Lancaster D. 

 Burling will supplement the arrangement of articles under countries and 

 make the finding of particular papers comparatively easy. 



Fr.\nk L. Hess. 

 Eva Hess. 



