186 Library. [JULY, 



meanings «ire pointed out ; formulae are added for the verification of 

 the theorem stated in this section. The last section contains a criticism 

 of Professor Sylvester's geometrical interpretation of the Mongian 

 equation ; the Professor's theorem is deduced with ease, but it is pointed 

 out that the geometrical theorem, though perfectly correct, is not at all 

 the geometric interpretation of the Mongian equation as contemplated 

 by Boole ; the theorem is, in fact, a truism ; what Boole sought for in 

 vain has yet to be discovered. 



The paper will be printed in Part II of the Journal for 1887. 



LlBR^F^Y, 



The following additions have been made to the Library since the 

 Meeting held in June last. 



Transactions, Proceedings and Journals, 



presented by the respective Societies and Editors, 



Amsterdam. Revue Coloniale Internationale,— Tome IV, Nos. 5 et 6, 



Mai— Juin, 1887. 

 Baltimore. American Chemical Journal, — Vol. IX, No. 2, April, 1887. 

 . American Journal of Philology, — Vol. VIII, No. 1, April, 



1887. 

 Batavia. Bataviaasch Genootschap van Kunsten en Wetenschappen, — 



Notulen, Deil XXV, Aflevering 1. 

 . . Tijdschrift voor Indische Taal-, Land-en Valken- 



kunde. Deil XXXI, Aflevering 5 en Aflevering 7. 

 Bombay. Anthropological Society of Bombay, — Journal, Vol. I, No. 2, 

 . The Indian Antiquary, Vol. XV, Part 191, December, 1886. 



Part 2; Vol. XVI, Part 197, June, 1887. 

 Brussels. Societe Royale Malacologique de Belgique, Proces Verbal, 



7th Aout— 4th Decembre, 1886. 

 Budapest. A Magyar Tudomanyos Akademia, — firtekezesek, Kotet 



XII, Szam VI— XII ; Kotet XIII, Szam 1—2, 5. 



. . Nyelvemlektar, Kotet XIII. 



. . Nyelvtudomanyi Kozlemenyek, Kotet XIX, 



Fuzet 2—3. 



