- M.--yJ 



t 



I 



* 1 



Sect. IX.] 



METEOROLOGY 



271. 



■one 



fully compared with the originals by two persons 

 reading aloud from the original, and the other attending 

 to the copy, and then exchanging parts— a process always 

 advisable when great masses of figures are required to be 



correctly copied. 



5. The registers should be regarded (if kept in pur- 

 suance of orders, or under official recommendati 



) 



Xs 



official documents, and dealt with accordingly. If other- 



(tl 



^d) 



To the Secretary of, &c. &c." Circuitous 



to some public body interested in the progress of meteor- 

 ological science, through some official channel, and under 



address " 



transmission hazards loss or neglect, and entails expense 



on parties not interested. 



6. The register of every instrument should be kept in 

 parts of its own scale as read off ; no redaction of foreign 



measures or degre 



es 



to British being made. But it 



should of course be stated what scale is used in each. 

 British observers, however, will do well to use instruments 

 graduated according to British units. 



7, The regular meteorological hours are 3 a.m., 9 a.m., 

 3 P.M., and 9 p.m., mean time at the place. Irksome as 

 it may be to landsmen to observe at 3 a.m., the habits of 

 life on shipboard render it much less difficult to secure 

 this hour in a trustworthv manner ; and the value of a 

 register in which it is deficient is so utterly crippledj that 

 whatever care be bestowed on the other hours, it must on 

 that account hold a secondary rank. The above hours, it 

 must be borne in mind, are the fewest which any meteor- 

 ological register pretending to completeness can embrace. 



Mfk»' 



