56 LIFE OF SIR JOHN LUBBOCK oh. 



I have also a case of dimorphism in Psocris, but have 

 not yet been able to make out much about it. It had 

 been already suspected by Westwood. 



Your case of trimorphism makes one's mental mouth 

 water for more information. 



Let me know when you return as I am very anxious 

 for a talk with you. — Yours afftly., 



John Lubbock. 



Most of Sir John's letters to Darwin, except 

 the very earliest, are signed thus " affectionately," 

 as addressing one who was to him almost a 

 second father. 



At Easter he made another excursion in 

 France with Sir J. Evans and Sir J. Prestwich. 



In the autumn he joined Huxley and Tyndall 

 in Switzerland, and had the accident on the 

 Jungfrau which is graphically described by 

 Tyndall in Hours of Exercise in the Alps. After 

 leaving them he joined the distinguished Swiss 

 Archaeologist, M. Morlot, with whom he visited 

 most of the Swiss Museums and Lake Dwellings 

 which he described in the Natural History Review, 

 and subsequently in Prehistoric Times. The same 

 autumn he wrote a paper on the life history of 

 Lonchoptera, one of the Diptera, which were 

 previously unknown, in the Transactions of the 

 Entomological Society. The larva is very curious. 



He also wrote for the Natural History Review 

 an elaborate Memoir on the Daphnidae, an 

 article on " The Habits of Insects," and a paper 

 on the " Remains of Man in the Somme Valley " ; 

 and contributed the first part of his work on 

 Thysanura in the Transactions of the Linnean 

 Society. 



At this time the thinking world was much 



