CHAP. VI.] UNDERGRADUATE OF TRINITY. 153 



"From 2 to 2.30 A.M. he took exercise by running 

 along the upper corridor, down the stairs, along 

 the lower corridor, then up the stairs, and so on, 

 until the inhabitants of the rooms along his track 

 got up and lay perdus behind their sporting-doors to 

 have shots at him with boots, hair-brushes, etc., as he 

 passed." 



Intellectual interests of all kinds surrounded him, 

 and he soon began to lend new life to all. There were 

 also in the Cambridge of this period religious influences 

 of a remarkable kind. Apart from the Simeonite tra- 

 dition which still lingered, there was a class- of younger 

 men, who, while faithful to a pious evangelical upbring- 

 ing, had open and inquiring minds. The names of 

 Henry and Frank Mackenzie of Trinity, the one senior 

 to Maxwell, the other junior to him, 1 may be men- 

 tioned in particular. To such men, and to many 

 others, the preaching of Harvey Goodwin, now Bishop 

 of Carlisle, but at that time chiefly known as a mathe- 

 matical authority, was full of interest. 



Two events of some importance to the scientific 1851. 

 world were the introduction of Foucault's pendulum 

 experiment for proving the rotation of the earth, and 

 the Great Exhibition of 1851. 



Maxwell saw the pendulum experiment in Mr. 

 Thacker's (the tutor's) rooms at Trinity in April or 



1 In 1852 H. M. had left Cambridge. F. M. went as a freshman to 

 Trinity in October 1852. See a book named Early Death not Premature, 

 being a Memoir of Francis L. Mackenzie, late of Trinity College 

 Cambridge. With Notices of Henry Mackenzie, B.A. By the Rev. 

 Charles Popham Miles, M.A., M.D., F.L.S., Glasgow. Nisbet and Co. 

 Fourth Edition. 1861. 



