WE have received from Messrs. W. Watson and Sons, Ltd., 313 High Holborn, London, W.C.I, a copy of the new edition of their microscope catalogue. A number of microscope stands of varying complexity ...

MESSRS. W. WATSON AND SONS, LTD., held their fourth exhibition of microscopes at the Central Hall, Westminster, on December 7-11, when the manifold uses of the microscope were practically illustrated, ...