Agassiz.] 390 [November 15, 



Prof. Agassis then made an exposition of the relations be- 

 tween certain extinct genera of fishes, bringing forward 

 strong evidence that the Chimseroids, Skates and Sharks 

 form three groups nearly equal in value. Prof. Agassiz also 

 read a letter from Dr. Anton Dohrn, of Jena, who writes that 

 the project which has long occupied the attention of zool- 

 ogists, namely, to establish a Laboratory of Marine Zool- 

 ogy on the Mediterranean, is on the point of being realized. 

 Dr. Dohrn is authorized to construct at his own expense, and 

 have the control of, for not less than thirty years, a building 

 in the Villa Reale, in Naples, close to the sea, containing an 

 aquarium for the public, and extensive workrooms for natural- 

 ists of every country. Dr. Dohrn, with other German zoolo- 

 gists, proposes to settle there and take charge of the station- 

 Helmholtz, Dubois Reymond, Huxley, Darwin, Hseckel, 

 Leuckart, Van Beneden, Agassiz, and others have consented 

 to form a committee to aid the project, i 



November 15, 1871. 

 The President in the chair. Twenty-three persons present. 

 The President read the following letter : 



'S3 



"Mr. R. M. Hodges, in behalf of his daughter, Mrs. J. A Swan, 

 her family and other relations, presents to the President, his associ- 

 ates in office, and to the members of the Boston Society of Natural 

 History, his grateful acknowledgements for their interest in the Rev. 

 Joshua Augustus Swan, while he was connected with the Society, 

 and for the deep and tender respect in which they hold his memory 

 since his decease. The tie which has been severed by his death, has 

 wounded many hearts that were favored with his sympathy and love 

 in the activities and affinities of life. 



Cambridge, Nov. 11, 1871." 



Prof. Morse made some remarks on the Relationships of 

 Amphioxus. 



