OLENELLUS AND OTHER GENERA OF MESONACID.E 373 



Dale, T. N. (conlinned) : 



1904. Bulletin of the United States Geological Survey, No. 242, 1904: 

 GcologA' of the Hudson Valley between the Hoosic and the 

 Kinderhook. 

 Edson, George. 



1907. Report of the State Geologist of Vermont for 1907- 1908. 

 Emmons, E. 



1844. The Taconic System ; based on observations in New York, Massa- 

 chusetts, Maine, Vermont, and Rhode Island, 1844; 4to, Albany. 



1846. Natural History of New York, Agriculture of New York, Vol. i. 

 1846; 4to, Albany. 



1849. Proceedings of the American Association for the Advancement of 

 Science, First Meeting, 1849, pp. 16-19: On the identity of the 

 Atops trilineatus and the Triarfhrus bcckcl (Green), with remarks 

 upon the EUptoccphalns asaphoidcs. 



1855. American Geolog>% Vol. i, pt. 2, 1855, pp. 1-251 ; 8vo, Albanj% New- 

 York. 



i860. Manual of Geology, 2d edition, i860 ; 8vo, New York. 

 Fitch, Asa. 



1849. Transactions of the New York State Agricultural Society for 1849, 

 PP- 753-944 '■ ^ historical, topographical, and agricultural survey 

 of the county of Washington. 

 Ford, S. W. 



18710. The American Journal of Science and Arts, 3d series. Vol. 2, 1871 

 (July), pp. 32-34: Notes on the Primordial Rocks in the vicinity 

 of Troy, N. Y. 



1871&. The Canadian Naturalist, new series, Vol. 6, 1871, pp. 209-212: (A 

 reprint of the paper listed under 1871a). 



1877. The American Journal of Science and Arts, 3d ser., Vol. 13, 1877, 



pp. 265-272, pi. 4 : On some embryonic forms of trilobites from 

 the primordial rocks at Troy, N. Y. 



1878. The American Journal of Science and Arts, 3d series, Vol. 15, 1878. 



pp. 129-130: Note on the development of Olenellus asaphoides. 



1881. The American Journal of Science, 3d ser., Vol. 22, 1881, pp. 250-259, 

 13 figures : On additional embryonic forms of trilobites from the 

 primordial rocks of Troy, N. Y., with observations on the genera 

 Olciicllus, Paradoxidcs and Hydrocephalus. 

 Frech, Fritz. 



i897(r Additional plates (without cover or title page) received at U. S. 

 Geological Survey Library in 1897 from the publisher with instruc- 

 tions to insert them in Lcthasa geognostica, pt. i, Lethsea paljeozoica. 

 Atlas, 1876 : 4to, Stuttgart. 



1897^. Lethsea geognostica, pt. i, Lethrea palaeozoica, Bd. 2, Lieferung i, 

 1897; 8vo, Stuttgart. 

 Gilbert, G. K. 



1875. Report upon Geographical and Geological E.xplorations and Surveys 

 west of the One Hundredth Meridian, Vol. 3, Geology, pp. 21-187: 

 Report on the geology of portions of Nevada, Utah, California, and 

 Arizona. 

 10 — w 



