250 BULLETIN OF THE 



be equally convincing to those who have thought differently ; but to 

 those who agree with my conclusions, as well as to those who differ from 

 them, I would quote the wish of the elder Silliman : " I take the liberty 

 to request, that those who may have it in their power will make precise 

 observations upon the appearances at the junctions, .... accompanied 

 by drawings and specimens when it is convenient ; and at least with 

 accurate descriptions. We might thus be in a condition to form a 

 general opinion of the origin of our trap rocks." * 



2. LITERATURE. 



A number of unimportant references to the Triassic rocks in Annual 

 Reports of State Surveys are omitted in the following list. These can 

 easily be found, if desired, by following Prime's "Catalogue of Official 

 Reports," etc., in the Trans. Amer. Inst. Mining Engineers, VII., 1879, 

 455. Papers referring only to fossils and date of the deposits are also 

 omitted, as the question of the age of the strata, for which the generally 

 accepted determination is adopted, does not now arise. References to 

 the articles cited are made in the text below simply by page number if 

 the author has but one title in the list ; by letter and page number, if 

 several of his papers are given. Pages in parentheses after a title show 

 that only those pages of the paper are devoted to the Triassic formation. 

 Papers that have not been seen are marked with an asterisk. 



Akerly, S. 



The Geology of the Hudson River. New York, 1820, (25-39, 57-64), and 

 section. 



Alger, F. See Jackson and Alger. 



Bailey, L. W., and Matthew, G. F. 



Preliminary Report on the Geology of Southern New Brunswick. Canada 

 Geol. Surv., 1870-71, (216-221). 



Bailey, L. W., Matthew, G. F., and Ells, R. W. 



Report on the Geology of Southern New Brunswick. Canada Geol. Surv., 

 1878-79, (21-23 D), maps and sections. 



Bailey, L. W., Matthew, G. F., and Hartt, C. F. 



Observations on the Geology of Southern New Brunswick. Fredericton, 

 1865, (123-125), map and sections. 



Barratt, J. 



On the Evidence of Congelation in the New Red Sandstone. Assoc. Amer. 

 Geols. Proc, 1845, 26. 



* Amer. Joum. Sci., XVIT., 1830, 131. 



