NOTICE TO SUBSCRIBERS. 



The .second year of the "Proceedings" terminates with the present 

 number, which completes the 1st vokime. It being desirable that the 

 termination of a Volume should coincide with the close of the year, the 

 2ud volume will terminate with December 1804, and will be published 

 on the following terms : — 



For Members (Resident and (Corresponding). 



.84 cts in advance from March to December I8O0. 

 $1.00 " for the year 1864. 



For the Public, $1.25 '" from March to December 1803. 



$1.50 •• for the year 1864. 



In future the price of Volume 1, will be $2.00 for Members, and 

 $3.00 for the Public. 



In consequence of the increased cost of paper and steadily increasing 

 number of pages published, postage will not be prepaid in future, on 

 copies sent through the Mail. Subscribers who wish to continue on the 

 above terms, are requested to remit to the Corresponding Secretary of 

 the Society, No. 518 South loth Street, Philadelphia. 



In the present state of activity in the Scientific World, it is important 

 that the Student should receive scientific periodicals as soon after their 

 publication as practicable; arrangements have therefore been made, by 

 which, the Society will receive without delay the Publications of most 

 importance to its Members. Under these circumstances the Publication 

 Committee will discontinue, with the present number, the system of making 

 Exchanges. 



March 1st, 1863. 



