486 POPULAR LECTURES AND ADDRESSES. 



had nothing more to do from morning till night. 

 Those were the palmy days of natural philosophy 

 in the University of Glasgow the pre-Commis- 

 sional days. But the majority of the class really 

 had very hard work, and many of them worked 

 after class-hours for self-support. Some were en- 

 gaged in teaching, some were city-missionaries, 

 intending to go into the Established Church of 

 Scotland or some other religious denomination of 

 Scotland, or some of the denominations of Wales, 

 for I always had many Welsh students. But about 

 five and twenty of the whole number found time to 

 come to me for experimental work several hours 

 every day. In those days, as now, in the Scottish 

 Universities all intending theological students took 

 the " philosophical curriculum " zuerst collegium 

 logician then moral philosophy, and (generally 

 last) natural philosophy. Three- fourths of my 

 volunteer experimentalists used to be students who 

 entered the theological classes immediately after 

 the completion of the philosophical curriculum. 

 1 well remember the surprise of a great German 

 Professor when he heard of this rule and usage : 



