LETTER FROM PROFESSOR BACHE. 



COAST SURVEY OFFICE, February 14, 1856. 



DEAR SIR: With this I forward to you a copy of the records of Magnetic Term-day Observa- 

 tions made at several stations in this city, and on the western coast, in accordance with 

 arrangements made in the spring of 1849. 



Yours, respectfully, 



A. D. BACHE, 



Superintendent. 

 Lieut. J. M. GTLLISS, U. 8. N., 



Superintendent Naval Astronomical Eocpedition, 



Washington, D. G. 



