THE EXHIBITION OF 1862. 
79 
ranged under the head of Philosophical Instruments. This is 
by no means a mistake, for to the weatherwise, the star-gazer, 
and nautical man, a good chronometer is as essential as scales, 
weights, and measures to the chemist. Two of our greatest 
living astronomers. Professors Hansen and Bond, were origin- 
ally in this profession. 
Whilst the English department is full of the admirable 
mechanism and inventions of our Dents, Bennetts, Frodshams, 
Losebys, &c., we perceive that other countries have not been 
behindhand. Germany has adopted Hartnup’s excellent balance. 
Hohwn, of Amsterdam, exhibits a compensation of his own 
invention, whilst a small pocket chronometer, of exquisite 
workmanship, exhibited by Baume and Lezard, which has been 
compared at the Geneva Observatory, appears to have kept its 
rate with extraordinary accuracy, and reflects great credit on 
the manufacturers. The ships’ chronometers of Grandjean also 
show the progress which this branch of manufacture has been 
making in Switzerland, where goodness and cheapness are 
combined. The nautical astronomer here finds plenty to engage 
his attention in every department of his occupation. 
