oil Chronomcti'rs, 



wliicii have gone ecjually well. We cannot offer a greater proof 

 ^liat we are practical artizans, than by stating, that we are em- 

 . ployed by some of the trade to make their chronometers entirely 

 complete and readv for sale ; and we have sold to different watch- 

 makers twenty marine chronometers in one year, a number that 

 no private man could possibly make himself without employing 

 other workmen: — but still we trust he would be considered the 

 maker of them all, as being made under his direction, and he 

 of course being respoUvsible for their performance. We have for 

 the last five years made on an average, forty marine chronome- 

 ters per year, and our demand is considerablv on the increase. 

 With the exception of eight or twelve, the whole of our chrono- 

 meters for three years past have been made in our own house, 

 many of them sprung, and the whole without any one exception 

 adjusted in temperature, and finally completed and put together 

 by ourselves personally. About five years ago, owing to a great 

 demand for chronometers, we applied to Mr. Molvneux (who was 

 employed with others at that time by us in making escapements) 

 to assist us in sprinuing. He recommended us to a person who 

 he informed us sjjrung for him, as it interfered too much with 

 the operative part of his business to do them himself. We sent 

 some to My. Molyneux to get done for us, who afterwards told 

 us that we had better send them to the person ourselves, as it 

 would occacion less trouble. This workman has been employed 

 both by Mr. Molyneux and ourselves ever since, to put chrono- 

 meters in that state in which their more accurate adjustments may 

 be perfected and completed by ourselves personally. 



The most important feature in the Polar chronometers (and 

 which we feel perfectly justified in saving was produced by their 

 mode of correction) was, that they took up steady and uniform 

 rates from the time they were put together, immediately after 

 their corrections were completed, none of them having been 

 going more than three weeks before they were delivered, and one 

 of them not ten days. 



In risking our property in the late hazardous enterprize, we 

 were actuated only by those motives which should stimulate men 

 in every pursuit through life, " a desire to excel in their profes- 

 sion;" and we cannot but feel mortified at any attempt to deprivje 

 us of the credit as the makers. The report existing in any other 

 quarter would have been unworthy our notice; but finding it very 

 generally circulated amongst gentlemen of science whose favour- 

 able opinion we are anxious to cultivate, we have been induced 

 to make this statement. We have the honour to be, sir. 



Your most obedient humble servants. 



To Mr. Tllloch. Parkinson and Frodsham. 



..... . P:S. 



