ft'. 



A WEEKLY ILLUSTRATED JOURNAL OF SCIENCE 



POCKET CLINOMETERS AND COMPASSES. 



Fig. I. 



Fig. 2. 



Brass Box Clynometer and Compass, metal divided scale edge. Bar Needle, Agate Cap and Stop Brass 

 Foot with sight, Fig. I jgj^ n g 



PATENT UNIVEESAL COMPASS. 



This Compass can be readily altered so as to be converted into a Floating Dial Compass or a Needle Compass 



at pleasure. 

 It is arranged as a Floating Dial Compass to show true North, not only in one part, but in any part of the 



World very readily, and by means of a pointer attached to the bezel, the variation when using as a Needle 



Compass is at once seen. 

 This Compass can be adjusted to overcome magnetic dip either as a Needle or Floating Dial Compass in 



any latitude (Fig. 2). Price, strongly gilt, with Magnetic Map, Dial if in. diameter, in Morocco Snap 



Case . . . . £2 10 



JOHN BROWNING, 



OPTICAL AND PHYSICAL INSTRUMENT MAKER TO H.M. GOVERNMENT, THE ROYAL SOCIETY. THE 



ROYAL OBSERVATORY OF GREENWICH, AND THE OBSERVATORIES OF KEW, CAMBRIDGE. 



MELBOURNE, THE U.S. NAVAL OBSERVATORY, CAMBRIDGE AND HARVARD 



UNIVERSITIES, HOBOKEN COLLEGE, &c., &c. 



63, STRAND, W.C. 



FACTORY— SOUTHAMPTON .STREET, LONDON, W.C. ESTABLISHED 100 YEARS. 



