AND MODERN PHYSICS. 70 



Garnctt and Schuster have been asking questions, 

 and all this has formed a good thick crust round my 

 brain. What you have said will take some time to 

 soak through, but wo will see about it." In a few 

 days ho came back with " I have been thinking 

 over what you said the other day, and if you do so- 

 and-so it will be all right." 



My dissertation was referred to him, and on tho 

 day of tho election, when returning to Cambridge for 

 the admission, I met him at Bletchley, station, and 

 well remember Lis kind congratulations and words 

 of warm encouragement. 



For tho next year and a half I was working 

 regularly at tho laboratory and saw him almost daily 

 during term time. 



Of these last years there really is but little to tell. 

 His own scientific work went on. Tho " Electricity 

 and Magnetism" was written mostly at Glcnluir. 

 About tho time of his return to Cambridge, in October, 

 1872, ho writes* to Lewis Campbell : 



, u I am continually engaged in stirring up the Clarendon 

 Press, but they have been tolerably regular for two months. I 

 find nine sheets in thirteen weeks is their average. Tuit gives 

 me great help in detecting absurdities. I am getting converted 

 to quaternions, and have put some in my book." 



Tho book was published in 1873. The Text-book 

 of Heat was written during the same period, while 

 " Matter and Motion," " a small book on a great 

 subject," was published in 1876. 



In 1873 and 1874 ho was one of the examiners for 

 tho Natural Sciences Tripos, and in 1873 lie was tho 



* " Life of J. C. Maxwell," p. 383. 



