LIST OF OBSERVATORIES. 



EXPLANATION OF SYMBOLS. 



— Chiefly engaged in astronomy of position. 

 AP — Chiefly engaged in astropliysical worl\. 

 Met — Conducts nieteoroh)gical observations. 

 Mag — Conducts magnetic observations. 

 I — For iiurposes of instruction. 



An asterisk prefixed signifies that the ol)servatory is one whose posi- 

 tion is given in the Americdii Ephemeris and Xautical Almanac for lOOJf. 



Meteorological stations are so numei'ous that it is not within the scope 

 of this list to include them all, but only the more considerable. Observa- 

 tories included for other reasons may occasionally receive the symbol 

 Met where the meteorological observations alone wonld hardly justify 

 an additional title. 



Although many letters were sent to dii'ectors of observatories asking 

 for information useful m the }>re])aration of this list, and a very gratify- 

 ing and painstaking response was nunle in most cases, it is realized that 

 it is far from being complete and accurate, especially in the use of 

 symbols. Li the interest of greater usefulness it is requested that 

 notices of errors and additions may be sent to the Smithsonian Institu- 

 tion by those who may have occasion to employ the list. 



