APPENDIX II. 



INSTRUMENTS USED IN THE EXPEDITION TO 

 ASH AN GO-LAND. 



First Supply. (From Mr. Potter, successor to Cary.) 



1 Aneroid, brass, in morocco case, 2 inches in diameter, registering 



from 15 to 31 inches. 



2 Compasses, prismatic, with stand, shades, and reflector, 3 inches 



diameter (Singer's patent). 

 2 Compasses, pocket (Singer's patent), l^- inches diameter. 

 Drawing instruments, one set in German silver, iu case, 6 inches 



by 9J inches. 

 Drawing pins, 2 dozen. 

 2 Horizons Artificial, folding roof, improved iron trough and 



bottle, in sling case. 

 Hj^sometrical Apparatus, viz. : — 



Bull's-ej'e lantern, copper boiler, 3 reservoirs for spirits, oil, 



or candle. 

 3 Thermometers for heights by boiling water, marked to 



215°, in brass case. 

 2 Thermometers, thermal or sun, marked to 230°, in brass 



case. 

 2 Thermometers, graduated for Fahrenheit and Centigrade. 

 1 Thermometer, graduated for Centigrade and Reaumur. 



Magnetic-electro machine, with 90 feet of cord or conducting 



wire. 

 2 Magnifiers, or reading glasses, large size. 

 Mercury, 7 lbs. in stone bottle, as reserve supply. 

 Parallel-ruler, Acland's pattern, 18 inches. 



