IV 



and are now in charge of Mr. F. W. Penny, geologist of that or- 

 ganization. To him science owes a great debt for the loan of 

 these unique copies, that the reprint may be made directly from 

 the original without the dangers of mistakes and the loss of time 

 involved in having all these articles typewritten. 



Guppy's latest publications, of the class here concerned, ap- 

 peared in the Proceedings of the Agricultural Society of Trini- 

 dad and Tobago. But even these are quite difficult to obtain, 

 being quite generally "out of print." Through the efficient as- 

 sistance of Mr. G. A. Waring of the Trinidad Petroleum Devel- 

 opment Company, by going the rounds of the libraries, public 

 and semi-private, practically all of Guppy's paleontologic papers 

 have been assembled, though in one case a typewritten copy had 

 to be made of the only copy found. 



Of the forty-one articles referred to below, twenty-five are 

 herewith republished as being now quite inaccessible to paleon to- 

 logical workers in the best equipped laboratories. 



In the various papers reprinted the subject matter is given 

 page for page, with the original orthograph3% unless otherwise 

 indicated. The punctuation and capitalization in some of the 

 later papers become extremely erratic, yet it has seemed best to 

 adhere strictly to "copy" lest Guppj^'s intentions should be 

 slightly modified b} T corrections introduced. 



The diagrams illustrating geologic sections have often been 

 reduced in size since nothing is to be gained by large cuts while 

 smaller ones show clearly all details. 



On plate 7, fig. 1, no attempt has been made to color the 

 carapace of Ranina cuspidata yellow as was done in the original. 



Guppy's bibliographical notes on the geology of the West 

 Indies are mainly recorded below in the Synopsis, pp. 7 and 193, 

 from the Transactions of the Canadian Institute. Additional 

 and supplemental references are given in his paper on Some Re- 

 cent Geological Discoveries in the West Indies, reprinted in this 

 Bulletin as PAPER No. 22, pp. 178-178. 



