PROCEEDINGS OF THE CENTENARY MEETING. cxix 



TSENTRALNAIA FlZICHESKAIA OBSERVATORIA NlCOLAS. 



To The Academy of Natural Sciences of Philadelphia: 



The Central Physical Observatory of Nicolas at St. Petersburg begs The 

 Academy of Natural Sciences of Philadelphia to accept the sincerest congratu- 

 lations of the Observatory on the occasion of the completion of one hundred j r ears 

 of most active devotion to the cultivation of the natural sciences, one branch of 

 which forms the task of the Observatory. 



We wish most heartily that the Academy, the oldest institution of the United 

 States for the study of the natural sciences, which has so much contributed to 

 the progress of these sciences, may in the next centuries of activity continue its 

 work with the same success. 



Director : 



M. Rykatchew 

 Vice Director: 



Ed. Stelling 

 Scientific Secretary: 

 E. Heintz. 

 St. Petersburg, 19 March, 1912. 



Tokyo Geographical Society. 



Tokyo, March 9th, 1912. 

 The Academy of Natural Sciences of Philadelphia: 



We return our hearty thanks for your kind letter, inviting us to send a delegate 

 to attend the glorious celebration of the Centenary Anniversary of your Academy. 

 Your Academy, born as it was in the days when Geography was in its cradle, 

 has ever since rendered great services to the progress of the natural sciences in 

 the world. As the celebration assumes the double importance on that account, 

 we should feel very anxious to be present at the celebration if we could. We, 

 however, greatly regret to have to inform that various circumstances hinder us 

 from sending you a delegate of our own. 



Again with many thanks for your kind invitation and with our heartfelt 

 wishes that the celebration will prove a great success, 



We have the honour to remain, Sir, 



KlNOSUKE INOUYE, 



General Secretary. 



