410 Mr. W, Hopkins [Jan. 31, 



The anatomist, however, though not obliged to concede, could yet 

 afford to argue upon, the assumption that mind and matter always 

 vary concomitantly. For, granting this, it by no means followed, that, 

 of the two terms of the comparison, mind was the second, body the 

 first. The effects of prolonged mental states of different natures, the 

 operation of education in marring or in elevating the physical 

 features, the instinctive value which we all give to physiognomy, 

 whether before us in actuality, or reproduced and preserved for us 

 by art, as affording indications of character, were glanced at as lines 

 of evidence to show that the mind might modify, whilst the body was 

 adapted ; that the immaterial might fashion, whilst the corporal was 

 conformed into accordance with it. " All alike, when coldly and 

 dispassionately viewed as concomitantly varying phenomena, lead us 

 to hold that our higher and diviner life is not a mere result of the 

 abundance of our convolutions. How harmony may have come to 

 exist between them our faculties are incompetent either to decide or 

 to discover ; but this shortcoming of man's intelligence affects neither 

 his duties nor his hopes, neither his fears nor his aspirations." 



[O. R.] 



WEEKLY EVENING MEETING, 

 Friday, January 31, 1862. 



WiiiLiAM Pole, M.A. F.R.S. Treasurer and Vice-President, 

 in the Chair. 



William Hopkins, Esq. M.A. F.R.S. &c. 



On the Motion of Glaciers. 



In the introductory part of this discourse Mr. Hopkins insisted on the 

 necessity of a more exact definition of terms, and more accurate 

 modes of mechanical reasoning than those which had too often charac- 

 terized the discussion of glacial phenomena. Nor had careful experi- 

 mental investigations respecting the properties of ice been adequately 

 appreciated in laying the foundations of theories of glacial motion, 

 till the experiments of Mr. Faraday and Dr. Tyndall reminded us 

 how defective and erroneous might be our conceptions on this subject 

 without the guidance of such careful research. These experiments 

 had revealed to us a property of ice, that of regelation, of which we 

 were previously entirely unconscious, though it is now probably re- 

 cognized by nearly all glacialists as the fundamental property by 



