GEOLOGICAL SURVEYS IN ALABAMA. 285 



the U. S. Survey has been very distinctly advantageous. In 

 retrospect one can, however, easily see how these benefits might 

 have been materially increased by more frequent conferences and 

 consequently more thorough mutual understandings and adjust- 

 ments. 



Paleontology and Natural History. — With the small amount 

 appropriated for the survey it would have been injudicious to 

 use any of it on paleontology, but Mr. T. H. Aldrich contributed, 

 without cost to the state. Bulletin No. i, published in 1886, con- 

 taining descriptions of new Tertiary fossils, with nine plates of 

 illustrations. This is the first installment of what is designed to be 

 a complete and illustrated account of our Tertiary paleontology. 



So also Professor Herrick, of Denison University, contributed 

 a List of the Fresh Water and Marine Crustacea of Alabama, 

 with Descriptions of New Species, which was published by the 

 Survey in 1887, as Bulletin No. i of Vol. V. This paper, which 

 also appeared as a Memoir of the Denison Scientific Association, 

 is illustrated by eight plates of figures of the species described. 



From the beginning of the survey collections have been 

 made by myself of the native plants of the state, and these col- 

 lections, combined with those of Dr. Charles Mohr, of Mobile, 

 were by him arranged and mounted, and the joint herbarium 

 deposited in the cabinet of the University of Alabama. A pre- 

 liminary list of the Alabama flora was printed in 1880, and Dr. 

 Mohr is now engaged in preparing for the survey a report on 

 the Botany of the state, in which every known indigenous 

 phaenogamous plant and fern will be listed, and full accounts 

 given of the timber, forage, useful and noxious plants. The geo- 

 graphical distribution of the Alabama flora and the mapping of 

 the botanical provinces of the state will be a valuable feature of 

 this report, which is now far advanced towards completion. 



In the progress of the work a new species of Croton of 

 shrubby habit, C. Alabamensis, has been discovered, and many 

 rare plants have been found growing upon our soil. 



Geological Map. — Lastly, the preparation of the geological 

 map of the state has engrossed a large part of the time and 



