THE MANCHESTER LITERARY AND PHILOSOPHICAL SOCIETY

Instituted February 1781.

36, George Street, Manchester, 2ith november 1901.

A Monsieur le Président du Comité du Cinquantenaire Berthelot.

On behalf of lhe Council and Members of the Manchester Literary and Philosophical Society, we bey to offer our most hearty congratulations to M. Berthelot on his completion of lîfty years of untiring scientific research extending over the whole field of pure applied and historical Chemistry.

Wetherwe regard the brilliant synthesis of vvich M. Berthelot showed that the wold of organic Chemistry can be built up front inorganic éléments, or wether we hâve regard to his researches which hâve made a science of Thermochemistry possible, we recognise that is work lias not-only been carried out with marvellous ingenuity but lias always been guided by fondamental conceptions.

This Society, of wich Dalton and Joule were long the chief ornaments, is proud to number M. Berthelot among its Members.

We desire to offer M. Berthelot on this occasion our earnest-wishes that we may long enjoy his splendid activity and his well-earned famé.

FRANCIS JONES ) Hon.

CHARLES SALEES ) SeCS.