Siemens. 
Phil. Tran s. 1876 . Plate 66 . 
First attempt 
to construct a Bathometer. 
a. Oblong Air -bulb of glass. 
b. Glass -tube filled/ with mercury 
up to Level <% . 
c. Portion of Glass -tube filled/ • 
with diluted/ alcohol to Level ft . 
cl. Portion, of tube filled/ with/ 
Juniper -Oil to Lovely . 
' e. Vacuous space above Oil. 
£. Glass stopper . 
■ 
b 
\ 
£ 
<x> 
a .Point 
Suspension. 
i 
- 
<0 
W.West&C°luK 
45 Wes 
