8 REPOET OF THE 



About the same date, acts were passed for the incorporation 

 of the " Clinton Salt Works," and for the improvement of the 

 State Salt Springs."* January 1, 1839, Dr. Houghton presented 

 a special "Eeport in relation to Salt Springs,"f and on the 28th 

 of the same month, a Eeport on Iron Ore in Branch County.J 

 The same day the Legislature passed an " Act relative to Salt 

 Springs." 



On the 4th of February, 1839, Dr. Houghton presented his 

 "Second Annual Beport."§ This document, of 153pp., was 

 made up as follows : 



1. Geology, by Dr. Houghton, 39 pp. " Northern Part or thb 

 Peninsula." " Topography and General Character," "Bocks," "Ter- 

 tiary Clays," "Shell Marl," "Gypsum," " Change of Elevation in 

 the Waters of the Great Lakes. Southern Part of the Peninsula. 

 " Coal," " Salt Springs and State Salt Lands." 



2. Zoology, by Dr. Abram Sager, 15 pp. A systematic cata- 

 logue of the animals of the State, as far as observed. 



3. Botany, by Dr. John Wright, 29 pp. A catalogue of the 

 plants of the State as far as observed. 



4. Topography, by S. W. Higgins, 21 pp. 



5. Geology of Eaton, Ingham and Jackson counties, by 0. G. 

 Douglas, Assistant Geologist, 13 pp. 



6. Geology of Wayne and Monroe counties, by Bela Hubbard, 

 Assistant Geologist, 36 pp. 



The Zoological and Botanical Departments were suspended 

 early in the year by the resignation of the officers in charge. 



On the 6th of January, 1840, the State Geologist made a 

 report in relation to the Salt Springs ||, and on the 3d of Februa- 

 ry, presented his Third Annual Report^ of 111 pages, covering 

 the following documents : 



1. Geology, by Dr. Houghton, 33 pp. A description of the 

 Topography and Geology of that portion of the Upper Penin- 



* Laws 1837-8, p. 165. 

 +House Don. , p. 39. 

 t ft., p. 342. 



\ Housj liuc, 1839, p. 380. 

 I Home Doc, 1840, Vol. I, p. H. 

 • \ lb. Vol. II, p. 202. 



