82 



* 



The day following- an exchange of the chronographic record of time and exchange- 

 signals, said signals will be carefully copied into a record-book, which, like all other 

 records, must be made in duplicate. 



It is intended that computations in the field shall be carried on to such an extent 

 as circumstances may permit. 



The time that can be allotted to each of these stations, in order to accomplish the 

 expected results for the season, is from twenty to twenty-five nights; and as observa- 

 tions are required only for eleven nights, the remaining- interval should be employed 

 in computation. 



The order of sequence for an astronomical report is furnished herewith, and the 

 records and journal will be so kept as to comprise all the data necessary for the full 

 expression of results in accordance therewith. 



Official : 



GEO. M. WHEELER, 



First Lieutenant Corps of Ei/f/htrrr*, hi 



