III.—Geological Survey of Illinois. A. H. Worthen, Director. Vol. I. Geology. 4to. 1866, pp. 504, with, eleven maps and engravings. Assistants: Professor J. D. Whitney, Professor Leo Lesquereux, and Mr. Henry Englemann.III.—Geological Survey of Illinois. A. H. Worthen, Director. Vol. II. Palæontology. 4to. 1866, pp. 470, with 50 plates. Vertebrata: MM. J. S. Newberry and A. H. Worthen.—Invertebrata: MM. F. B. Meek and A. H. Worthen.—Plants: M. Leo Lesquereux.III.—Geological Survey of Illinois. A. H. Worthen ...

1869 Geological Magazine  
doi:10.1017/s0016756800162971 fatcat:f22qli64yjeezdhn43m5zjm3pa