98 PRICE LIST 



Volume XIII, 1911, pp. viii + 102, 1 plate: 



Bound in paper $2 . 00 



Bound in cloth 3 . 00 



Directory of the Washington Academy of Sciences and Affiliated 



Societies 



A Directory with the above title was issued in 1899, 1900, 1901, 

 1903, 1905, 1907, 1909, and 191 1, copies of which can be supplied at 15 

 cents each. 



