/ 'tir; n'rs. 



LONDON, May 26, /S?j. 



MY DEAR YOUMANS: I was somewhat concerned yes- 

 terday to gather from a letter of yours to Spencer that the 

 religious world were bearing hard upon you seeking to 

 damage Appleton, and in so far damaging you; but your 

 letter of this morning, which is all brightness, dissipates 

 my concern. Surely, surely, a man like you must have 

 labour room in the wide area of the States. The men on 

 this side whom you work with are not scoffers; and if they 

 didjiot lead the movements of the age, trust me, these move- 

 ments would fall into more irreverent hands. 



Those that have seen The Popular Science Monthly 

 here call it "a delightful magazine." 



Yours ever, JOHN TYNDALL. 



September 15, 1874. 



MY DEAR YOUMANS : Thanks, many and hearty, for 

 your cordial letter. I have just time to say that before 

 this week ends a revised copy of the Belfast Address 

 shall be on its way to you. 



It has caused tremendous commotion. How foolish 

 they are ! Their wisdom would have been shown in letting 

 the thing alone, but they are not Wisdom's children. 



Cardinal Cullen has just appointed three days of prayer 

 to keep infidelity out of Ireland ! 



Yours ever, JOHN TYNDALL. 



P. S. I caught a glimpse of Spencer yesterday, and 

 shall dine with him to-morrow. He is flourishing. 



September 28, 1874. 



MY DEAR MR. APPLETON : The Address, separately pub- 

 lished, is going off with exceeding rapidity. The third 

 thousand was called for in three days. 



Yours ever faithfully, JOHN TYNDALL. 



