250 LOUIS AG A SSI Z. 



others of like pursuits and interests. Made 

 welcome in many homes, he could scarcely 

 respond to all the numerous invitations, social 

 and scientific, which followed the Edinburgh 

 meeting. 



Guided by Dr. Buckland, to whom not only 

 every public and private collection, but every 

 rare specimen in the United Kingdom, seems 

 to have been known, he wandered from treas- 

 ure to treasure. Every day brought its reve- 

 lation, until, under the accumulation of new 

 facts, he almost felt himself forced to begin 

 afresh the work he had believed well ad- 

 vanced. He might have been discouraged 

 by a wealth of resources which seemed to 

 open countless paths, leading he knew not 

 whither, but for the generosity of the Eng- 

 lish naturalists who allowed him to cull, out 

 of sixty or more collections, two thousand spe- 

 cimens of fossil fishes, and to send them to 

 London, where, by the kindness of the Geo- 

 logical Society, he was permitted to deposit 

 them in a room in Somerset House. The 

 mass of materials once sifted and arranged, 

 the work of comparison and identification be- 

 came comparatively easy. He sent at once 

 for his faithful artist, Mr. Dinkel, who began, 

 without delay, to copy all such specimens as 



