Annual Report of the Council. xxxix 



The third great development due lo van't Hoff was carried 

 out in Berlin. A very careful and complete investigation into 

 the conditions under which various simple and double salts 

 crystallize, led to a clear statement of the general conditions 

 governing this class of heterogeneous equilibria. With this work 

 as a basis, he commenced the very laborious investigation into 

 the conditions of formation of tlie Stassfurt salt deposits. A 

 collected account of these researches, which were carried out in 

 conjunction with the late Dr. Meyerhoffer and a number of 

 pupils, has been published under tlie title of "Zur Bildung der 

 ozeanischen Salzablagerungen." 



Even in such a brief account as is here presented, mention 

 should be made of the publication, in 1884, of the celebrated 

 "Etudes de Dynamique chimique," in which the author gives an 

 account of his researches on the quantitative relations met with 

 in the course of chemical reactions, and especially on the con- 

 ditions of equilibrium. 



Many will undoubtedly remember his visit to Manchester on 

 the occasion of the celebration of the centenary of Dalton's 

 atomic theory. During his visit the honorary degree of Doctor 

 of Science was conferred upon him by the University of Man- 

 chester, thus adding one more to the long list of honorary 

 degrees of which he has been the recipient. Many other 

 honours, including the award of the Nobel Prize in 1901, were 

 bestowed upon him by nearly all the well known scientific 

 societies, but undoubtedly he will be remembered by chemists 

 in general as a great pioneer and investigator, and by his pupils 

 not only as a brilliant chemist, but also as a beloved and 



successful teacher. 



N. S. 



By the death of Sir William Huggins, O.M., K.C.B., 

 F.R.S., on May 12th, 1910, this Society lost a distinguished 

 honorary member, who for many years was one of the foremost 



