JAMES SWIFT & SON, 
Manufacturers of Optical and Scientific Instruments, | 
Contractors to all Scientific Departments of H.M. Home 
and Colonial and many Foreign Governments. 
Grands Prix, Diplomas of Honour, and Cold 
Medals at London, Paris, Brussels, ete. 
MICROSCOPES 
AND OTHER 
INSTRUMENTS FOR 
ALL BRANCHES OF 
GEOLOGY, 
MINERALOGY, ~ 
PETROLOGY. 
Sole Makers of the 
‘DICK’? MINERALOGICAL 
MICROSCOPES. 
Dr. A. HUTCHINSON’S 
UNIVERSAL CONIOMETER. 
University Optical Works, 
81 TOTTENHAM COURT ROAD, 
LONDON. 
NOW READY. 
THE FLOWERING PLANTS 
OF AFRICA 
AN ANALYTICAL KEY TO THE GENERA OF 
AFRICAN PHANEROGAMS. 
B BY 
FR. THONNER. 
XVI and 640 Pages, 150 Plates, | Map. Cloth. 
Price 15s. Net. 
DULAU & CO., Ltd., 37 Soho Square, London, W. 
