50 - General Notes. [ January, 
Marcou, F. and Marcou, F- B.—Mapoteca Geologica Americana. A catalogue of 
geol. maps of Amer., N. and S., 1752-1881. Bull. U. S. Geol. Surv., No. 7. 
Irving, R. D., and Van Hise, C. R.—On secondary enlargements of mineral frag- 
ments in certain rocks. Bull. U. S. G. S., No. 8. 
Clarke, F. W., and Chatard, T. M.—A report of work done in the Washington 
laboratory 1883-1884. Bull. U. S. G. S., No. 9. 
-Waicott, C.—On the Cambrian faunas of N. Am. Bull, U: S. Geol. Surv., No. to. 
Call, R. E., and Gilbert, G. K.—On the Quaternary and recent Mollusca of the 
Great basin, also a sketch of the Quaternary lakes. Bull. U. S. G. S., No. 11. 
Dana E. S.—A crystallographic study of the thinolite of Lake Lahontan. Bull. U. 
G: 5, Nour. 
S. 
Burns, C., and Stronhal, V.—The electrical and magnetic properties of the iron 
carburets. Bull. U.S. G. S5., No. 14. 
‘Gannett, H.—Boundaries of the United States, of the States and Territories. Rull. 
U. S. Geol. Surv., 13. All from the department. 
Third annual report of the board of control of the N. Y. Agric. Experiment Sta- 
tion, 1884. From the board. 
fleilprin. A., and Meyer, 0.—Notes on the classification and palzontology of the 
U. S. Tertiary deposits. Science, June 12, July 17, July 31, Aug. 21. 
Boettger, O.— . Vv. Hrn, Dr, m 
ammelten Kriechthiere, 1885. From the author. 
Dollo, M. L.—W’appareil sternal de L’ Iguanodon. Ext. d.1, Rev. d. Quest. Scien., 
Oct., 1885. From the author. 
James, J. F—Remarks on a supposed fossil fungus from the coal measures, Ext. 
Jour. Cin. Soc. N. H., Oct., 1885. From the author. 
Agassiz, A., and Whitman, C. O,--The development of osseous fishes. Mem. 
Mus. Comp. Zool., Camb., Vol. xıv, No. 1, Part 1, 1885. From the authors. 
Huil, E.—On the geological age of the North Atlantic ocean. Sci. Trans. Roy. 
Dublin Soc., 1885. From the author. 
Everhart, B. M.—Index to Ellis’ North American fungi. From the author. 
Baker and Harrigan.—Catalogue of trotting stock, Great Meadow farm, 1886, 
:0:—— 
GENERAL NOTES. 
GEOGRAPHY AND TRAVELS.! 
Asia.—The Trigonometrical Survey of India—At the meeting 
of the British Association, held at Aberdeen in September of this — 
A the president of the geographical section, General J. T. 
'alker, gave an account of thé survey of Hindostan. Survey 
operations along the coast-lines began before the commencement 
of the seventeenth century, and the first general map of India, 
-published by D’Anville in 1752, was compiled from the charts _ 
of coast-lines and the itineraries of travelers, Major Rennell, 
appointed surveyor of Bengal in 1764, was the father of Indian 
geography. In nineteen years he surveyed 300,000 square miles, 
‘and after his return to England, published a great work on Indian 
geography. At the close of the last century Major Lambton 
_ drew up a project for a general triangulation of Southern India. 
-He commenced work by a careful triangulation of Southern 
ed. W. Kobelt in Algerien und Tunisien ges- 
r 
‘ae India, but for several years no notice was taken of his import- i 
a 
_h'Fhis department is edited by W. N. LOCKINGTON, Philadelphia, 
