1888.] TAhrary. 87 



a symbolic value for tt, wliicli is deduced as an immediate consequence 

 as well of Poisson's integral, as of an analogous definite integral also 

 considered by that eminent mathematician. The fourth section contains 

 an interesting geometrical interpretation of the analytical transformation 

 in Poisson's remarkable result ; the geometrical property used is the 

 well-known relation between the true and eccentric anomalies, with 

 which we are familiar in the planetary theory ; in conclusion, the geo- 

 metrical interpretation leads to a definite integral which is evaluated. 

 The paper will be published in the Journal, Part II for 1888. 



LlBE\AE\Y. 



The following additions have been made to the Library since the 

 Meeting held in January 1888. 



Tl^ANSACTIONS, PROCEEDINGS AND JOURNALS, 



presented hy the respective Societies and Editors. 

 Baltimore. American Chemical Journal^ — Vol. IX, No, 6, ]N"ovember, 



1887. 

 . American Journal of Philology, — Vol. VIII, No. 3. Octo- 

 ber, 1887. 



•. Johns Hopkins University, — Circulars, Vol. VII, Nos. 60- — 



61, November, December, 1887. 

 Birmingham. Birmingham Philosophical Society, — Proceedings, Vol. 



V, Part II, Session 1886-87. 

 Budapest. Magyar Tudomanyos Akademia, — E'rtekezesek, Kotet XIII 



Szam 3, 4, 6—12. 

 . . Nyelvtudomanyi Kozlemenyek, Kotet XX, 



Flizet 1—2. 



^^ . . Begi Magyar Koltok Tara, Kotet V. 



__ ,^ . Mathematische und Naturwissenschaftliche 



Berichte aus Ungarn. Band IV. 



. . Ungarische Revue, Heft 1—7, 1887. 



,. .. Ethnologische Mitteilungen aus Ungarn, Jalir- 



gang I, Heft. I. 

 Bombay. Anthropological Society, Journal, Vol. I, No. 3, 1887. 



. Indian Antiquary, Vol. XVII, Part CCIV, January 1888. 



. . Royal Asiatic Society, Bombay Branch,— Journal, Vol. XVII, 



No. XLVI, 1887. 



