October ist, 1912.] Proceedings. iii 



Fesselballoti-beobachtungen^'' II. " Wissenschaftliche Ergehiiisse 

 der Aufstiege mit dem Freiballone ' Batavia '," von C. Braak (410., 

 Batavia, 191 2), presented by the Koninklijk Magnetisch en 

 Meteorologisch Observntorium te Batavia; and " Ce/iso General 

 de la Chidad de la Plata" by C. P. Salas and A. C. Alcorta (410., 

 La Plata, 1910), presented hy the Direccion General de Esta- 

 distica de la Provincia de Buenos Aires. 



New exchanges have been arranged with the Tohoku 

 Imperial University {Science Reports and Tohoku Mathetnatical 

 Jour}ial\ Sendai ; and the Bureau of Productive Industries, 

 Government of Formosa {Icones Platitartim Formosanartim^ nee 

 non et Contributiones ad Floram Formosafiam), Taihoku. 



A copy of the Address presented to the Royal Society of 

 London, at the celebration of the 250th anniversary of its 

 foundation, was read by the PrrsidEiNT. The Address was as 

 follows : — 



" Praesidi Consilio Sodalibus Societatis Regalis Pro 

 "Scientia Naturali Promouenda annum CCL suum feliciter 

 " celebrantis S.P.D. Societas Litteraria et Philosophica 

 " Mancuniensis. 



*' Etsi uix omnibus persuadebit poeta qui censebat 

 " In magnis et uoluisse sat est, 

 "tamen cum praeclaros Societatis Vestrae annales per tot 

 " iam saecula florentis spectemus, nostrae certe non ingrata 

 "laus erit si quis nos uoluisse iudicauerit, quantum quidem 

 " intra prouinciam nostram fieri posset, insistere uestigiis 

 ''Vestris. Nee sine gloria quadam propria nobis, qui usque 

 " ad hunc diem Daltonii illius domum habitamus, recordari 

 "licet et Daltonium ipsum et loulium, — quibus qua nomina 

 "in rebus physicis illustria ? — communes socios Vestri et 

 " nostri corporis fuisse, nee non inter nos, ut inter famili- 

 "ares suos, aliquanto prius reperta sua quemque esse 

 "confesses. Nonne enini, ut cecinit Salomo, "ceu ferrum 

 " ferro, sic ab amico exacuitnr amici facies ? "' Nos certe si 

 "quid unquani boni in medium conferre uel poterimus uel 



