CAMBRIAN FAUNAS OF CHINA.« 



B}^ Charles D. Walcott, 



Curator, Dirisiov of Stratitjrdjiliic Paleontology. 



INTRODUCTION. 



In the first paper on the Cambrian Faunas of China* a historical 

 introduction was given along with a list of the species known at the 

 date of the publication of the paper. 



During the summer of 1905 a box of fossils, that had been lost, was 

 received in Washington. This material was collected by Mr. Eliot 

 Blackwelder under the direction of Mr. Bailey Willis, principall}^ 

 from the provinces of Shen-si and Shan-si. It has afforded a number 

 of new species, but has not added otherwise niateriall}" to our knowl- 

 edge of the Cambrian faunas of China except in the case of the 

 occurrence of the genus Coscinocyathus. 



The illustrations for the report on the Cambrian faunas of China, 

 collected by Messrs. Willis and Blackwelder, are now well advanced, 

 and it is anticipated that the full report, including descriptions of 

 genera and species and paleontological correlations and illustrations, 

 will be published before the close of 1906. 



When preparing the preliminary notes on the Cambrian faunas of 

 China* in 1905, I had not noticed that H. Monke had published a 

 paper on the Geology of Shan-tung, and described certain ""Upper" 

 Cambrian trilobites.'" It was not until February 27, 1906, that the 

 Jahrbuch containing the paper arrived at the United States Geological 

 Survey librarj'. 



« Preliminary Paper No. 2. 



feProc. U. S. Nat. Mils., XXIX, Sept., 1905, pp. 1-106. 



c Beitrage zur Geologic von Schantung. I. Obercambrische Trilobiten von Yen- 

 tsy-yai. Jahrb. d. K. P. Geol. Landesanst. und Bergakad. zu Berlin, XXIII, Pt. 1, 

 1903, pp. 103-151. ^ 



Proceedinqs U. S. National Museum, Vol. XXX— No. 1458. 



563 



