The Bo^rA of Trustees of Washington and Lee University, at its next Btated 

 meeting. jPrft* day; iunlj^G. I 886, will elect a 



Professor ot , ' , 'Moral Philosophy and Belles Lettres 



AND A 



Professor of Chemistry and Geology. 



Communications may be addressed to JACOB FULLER, 



March 22, 1886. — [Ap.— 3t.] Secretary of the Board, Lexington, Va. 



DANA'S WORKS. 



Ivison, Blakeman, Taylor & Co., New York.— Manual of Geology, by J. D* 

 Dana. Third Edition, 1880. 912 pp. 8vo. $5.00.— Text-book of Geology) 

 by the same. 4th ed. 1883. 412 pp. 12mo. $2.00.— The Geological Story 

 Briefly Told, by the same. 264 pp. 12mo. 1875. 



J. Wiley & Sons. New York. — Treatise on Mineralogy, by J. D. Dana. 5th 

 edit, xlviii and 828 pp. 8vo., 1868. $10.00. The 5th "subedition" was 

 issued by Wiley & Son in April, 1874. (Each ''subedition" (or issue from the 

 stereotype plates), contains corrections of all errors discovered in the work up 

 to the date of its publication). Also, Appendix I, by G-. J. Brush. 1872. Ap- 

 pendix II, by E. S. Dana, 1875. — Manual of Mineralogy & Lithology, by 

 J. D. Dana. 3d edition. 474 pp. 12mo.. 1878.— Text-book of Mineralogy, 

 by E. S. Dana. Revised edition. 512 pp. 8vo., 1883. — Text-hook of 

 Elementary Mechanics, by E. S. Dana. 300 pp. with numerous cuts, 12mo., 

 1881. — Manual of Determinative Mineralogy, with an Introduction on 

 Blow-pipe Analysis, by George J. Brush. 8vo., 2d ed. 1877. Third 

 Appendix to Dana's Mineralogy, by E. S. Dana. 136 pp. 8vo. 1882. 



Dodd & Mead, New York. — Corals and Coral Islands, by J. D. Dana. 398 pp. 

 8vo, with 100 Illustrations and several maps. 2d ed., 1874. 



AMERICAN JOURNAL OF SCIENCE. 



Founded by Professor Silliman in 1818. 



Devoted to Chemistry, Physics, Geology, Physical Geography, Mineralogy » 

 Natural History, Astronomy, and Meteorology, and giving the latest discoveries 

 in these departments. 



Editors: James D. Dana and Edward S. Dana. 



Associate Editors : Professors Asa Gray, J. P. Cooke, Jr., and John Trow- 

 bridge, of Cambridge, H. A. Newton and A. E. Verrill, of Yale, and G. F. 

 Barker, of the University of Pennsylvania, Philadelphia. 



Two volumes of 480 pages each, published annually in MONTHLY NUMBERS. 



This Journal euded its first series of 50 volumes as a quarterly in 1845, and its 

 second series of 50 volumes as a two-monthly in 1870. The monthly series com- 

 menced in 1871. 



Twenty copies of each original communication are, if requested, struck off for 

 the author without charge ; and more at the author's expense, provided the num- 

 ber of copies desired is stated on the manuscript or communicated to the printers 

 of the Journal. 



The title of communications and the names of authors must be fully given. 

 Articles should be sent in two months before the time of issuing the number for 

 which they are intended. Notice is always to be given when communications 

 offered, have been, or are to be, published also in other Journals. 



Subscription price $6 ; 50 cents a number. A few complete sets on sale of 

 the first and second series. 



Address the Proprietors, 



J. D. and E. S. DANA, New Haven, Conn. 



