HISTORY OF THE NAUTILUS. 



In answer to numerous inquiries, it lias been deemed advisable to give a 

 brief historical sketch of THE Nautilus and its predecessor The Cone ho I agists^ 

 Exchange, 



Tlie present conchological periodical " The Nautilus" was pre- 

 ceded by " The Gonchologlsts' Exchange," a monthly published by 

 Mr. Wm. D. Averell. The first number of the Exchange was 

 printed on a postal card in July, 1886. Beginning with August, 

 1886 the Exchange was printed in 12 mo. form, 51 x 62 inches, with 

 a varying number of pages. Eleven numbers (Nos. 9 and 10 being 

 printed together as a "double number") were issued of this first 

 volume. The second volume began with July, 1887. Nine num- 

 bers were issued, when publication was suspended. 



In May, 1889, Mr. H. A. Pilsbry with Mr. Averell issued the 

 first number of The Nautilus. The new periodical assuming the 

 unexpired subscriptions on the list of the " Exchange." At the com- 

 pletion of volume I (including May, 1889 to April, 1890), Mr. 

 Chas. W. Johnson purchased Mr. Averell's interest in The Nauti- 

 lus, Mr. Averell entirely severing his connection with it. 



The present publishers of The Nautilus are unable to furnisli 

 copies of" The Conchologlds' Exchange." 



H. A. P. & C. W. J. 



