Advertisements. 
xxv 
J. H. STEWARD’S 
Improved Surveping Instruments 
FOR TRAVELLERS AND EXPLORERS. 
THE 
STEWARD 
TELEMETER 
(patent). 
An invaluable pocket 
instument for rapid recon¬ 
naissance and for measuring 
distances. 
Price = £5 5 s. 
If with Telescopic Power, 
£ 7 . 
ILLUSTRATED CATALOGUES 
In following Parts sent post free. 
I. Field and Marine Glasses—Patent Prismatic Glasses—Sporting 
Telescopes, &c. 
II. Meteorological Instruments—Improved Mountain Aneroids and 
Travellers’ Thermometers, &c. 
III. Achromatic Microscopes and Geologists’ Pocket Lenses. 
IV. Surveying Instruments—Levels—Compasses—Theodolites—Improved 
Telemeters—Nautical and Box Sextants. 
406, STRAND, W.C.; 457, WEST STRAND, W.C.; 
7, GRACECHURCH STREET, E.C., LONDON. 
TpUrdinnoQ • / 406 > Strand—Gerrard, 1,867. Telegraphic Address: , 
1 ' l 7, Gracechurch St.—Avenue, 9'30. “ Telemeter, London.” 
