The Scottish Naturalist. 



245 



with by the Section. I cannot here pretend to give even the most 

 condensed account of the various addresses ; and must content 

 myself with merely giving the names of the Presidents, and the 

 themes taken up by them. In Section (A.) Captain W. Abney 

 dealt with Photography. In (B.) Sir Lowthian Bell compared 

 the Progress of the Metallurgy of Iron with, and without, 

 the aid of chemistry, affirming that since the iron-master had allied 

 himself with the chemist, more progress had been made in the 

 manufacture of iron within the last 30 years than in the three 

 centuries preceding. 



Section (C.) was presided over by Prof. James Geikie, who 

 discoursed upon "Some of the results obtained during 

 the last few years by Continental workers in the 

 domain of Glacial Geology." 



In Section (D.) Prof. Burdon-Sanderson was unable, through 

 illness, to be present on the opening day ; but the address which he 

 had prepared was read by Canon Tristram of Durham. It began 

 with a Comparison of Morphology and Physiology, 

 and went on to deal with those questions which relate to the 

 elementary endowments of living matter. 



Sir Francis de Winton, in Section (E.), expatiated on the 

 Effect of Climate upon Race; upon recent Trading 

 Voyages to Siberian Rivers ; the Crossing of Green- 

 land by Dr. Nansen ; and the results of the recent Journeys 

 of Mr. Stanley, and of two other travellers in Africa. 



Pro F. Y. Edge worth, in Section (F.), discussed the Points 

 at which Mathematical Reasoning is applicable to 

 Political Economy. 



In (G.) Mr. Wm. Anderson spoke of Atomic Equilibrium, 

 the gaseous, liquid, and solid states of matter, heat and molecular 

 energy, the hardening of steel, and the stresses that are set up in 

 large castings and forgings when cooling, etc. 



"Heredity" was the subject chosen by Sir William Turner 

 for Section (H.), a branch of Anthropology so interesting to many 

 of the members that the meeting-hall was early crowded, and 

 many could not get in. In the course of his remarks he referred 

 to the prominence which heredity had assumed in late years, in 

 connection with its bearing on Natural Selection ; and stated that 

 it also occupied a prominent position in the minds of anatomists, 

 physicians and physiologists in relation to man as regards his 



