1869 PHYSIOGRAPHY LECTURES 445 



give the scholar a notion of the methods and of the 

 ideas which he will meet with in his further progress 

 in all branches of physical science. 



In fact, the fundamental principle was to begin 

 with Observational Science, facts collected; to pro- 

 ceed to Classificatory .Science, facts arranged ; and 

 to end with Inductive Science, facts reasoned upon 

 and laws deduced. 



While he was much occupied with the theoretical 

 and practical difficulties of such a scheme of science 

 teaching for general use, he was asked by his friend, 

 the Eev. W. Eogers of Bishopsgate, if he would not 

 deliver a course of lectures on elementary science to 

 boys of the schools in which the latter was interested. 



He finally accepted in the following letter, and as 

 the result, delivered twelve lectures week by week 

 from April to June to a large audience at the London 

 Institution in Finsbury Circus, lectures not easily 

 forgotten by the children who listened to them nor 

 by their elders : 



JERMYN STREET, Feby. 5, 1869. 



MY DEAR EOGERS Upon due reflection I am not 

 indisposed to undertake the course of lessons we talked 

 about the other day, though they will cost me a good 

 deal of trouble in various ways, and at a time of the year 

 when I am getting to the end of my tether and don't 

 much like trouble. 



But the scheme is too completely in harmony with 

 what (in conjunction with Tyndall and others) I have 

 been trying to bring about in schools in general not to 

 render it a great temptation to me to try to get it into 

 practical shape. 



