GENEVA SOCIETY OF PHY.SICS AND NATUEAL HISTORY. 235 



teloplione; Dr. Forel, the frost of the 12tli of November, 18T6; Pro- 

 fessor Wartmaun, apparatus for ascertainiug the impulsion that a spark 

 of induccioii passiug through a rarefied gas is capable of producing in a 

 longitudinal direction ; M. A. Achard, the form and properties of the 

 articulated losangeof Peaucellier ; composition of certain waters, accord- 

 ing to Cxirardin; M. E. Sarasin, a writing-machine; M. E. Pictet, a 

 work of M. Dufour, of Lausanne, upon the cure of a person blind from 

 birth, and upon the theory of vision {Archives, 1877, t. 58) ; Professor 

 SchifP, various experiments upon the hereditary transmission of certain 

 artificial lesions ; M. Fol, memoirs upon the heteropodes, upon pulmo- 

 nated terrestrial mollusks, and upon a microtome which allowed the 

 making of fifteen or sixteen cuts of an embryo of one-fifth of a milli- 

 meter in thickness ; M. Fatio, axolotls, the preparation of delicate skel- 

 etons cleaned by the tadpoles of frogs ; Professor De Candolle, the law 

 of botanical nomenclature ; Professor Muller, lichens ; M. M. Micheli, in- 

 fluence of manure upon the composition of grains. 



With this list, gentlemen, I close the report I have the honor to pre- 

 sent to you. We have cause for satisfaction that the increase in the 

 number of members, of the memoirs presented, and of our publications, 

 manifests a growth of activity in our society. 



