1851.] 



On the Rates of Chronometers. 



69 



23. And here in Calcutta since 

 discharging cargo ? 



24. Did you experience any- 

 remarkable currents, i. e. differ- 

 ences of Acct. and Chr. for 24h. 

 and was any allowance for the 

 deviation of your compasses made 

 in your D. R ? 



25. Did these Log-Book cur- 

 rents appear to prevail more when 

 the ship was standing on any one 

 rhumb more than on another ? 



26. Give averages of your re- 

 markable Log Book currents, and 

 note how standing at those times 

 if you can. 



H.— No. McL.— No. L.— 



No. 



H. — None. McL.— None. L. 

 No. 



H. — No replies. 



H. — No replies. 



Final. 



27. Do you ever recollect in- 

 stances of such remarkable altera- 

 tions in the rates of your Chr s . 

 before ? 



28. Of those of other com- 

 manders ? 



29. Do you recollect any in- 

 instances of the kind in print ? 



H. — Never so great an error. 

 M C L. — Yes, when on a former 

 occasion carrying iron to a large 

 extent. 



H.— No reply. M C L.— Capt. 

 Nash of the Maidstone complained 

 of the same, and having signalized 

 with several ships, 1 found them 

 all to the Eastward of my reckon- 

 ing after having made my correc- 

 tions. All more or less carrying 

 iron this year. 



H.— None. M C L.— None. 



The replies to the foregoing queries seem to be exactly a confirma- 

 tion of my supposition that Captain Hopkin's and McLeod's Chrono- 

 meters were affected by the large quantity of iron on the Prince of 



