1806. JET. 53.] COUNT RUMFORD. 93 



after all, but never certainly to the disadvantage of any- 

 one. Between you and myself, as a family secret, I am not 

 at all sure that two certain persons were not wholly mis- 

 taken, in their marriage, as to each other's characters. 

 Time will show. But two months barely expired, I fore- 

 bode difficulties. Already I am obliged to send my good 

 Germans home a great discomfort to me and wrong to 

 them. 



On March 8, 1806, Sir C. Blagden, who had quar- 

 relled with his friend because he thought that Count 

 Rumford had not defended him from the imputation 

 of acting as a spy in Paris in 1803, wrote to Rumford's 

 daughter regarding the marriage : 



They are now living together in Paris, and, as far as I 

 can learn, very happily. I know nothing of it from your 

 father himself, which is not surprising, as I some time since 

 intimated to him my wish that our correspondence should 

 cease. We are not, to the best of my knowledge, on terms 

 of enmity, but it is not likely that any kind of confidence or 

 friendship should subsist between us again. 



In 1806 and 1807 Count Rumford sought for relief 

 by the pursuit of science. He published in the 

 Memoirs of the mathematical class of the Institute a 

 continuation and extension of his investigations on 

 light and heat. These were in the sixth, seventh, and 

 eighth volumes, and made nine papers. 1. <A Descrip- 

 tion of a New Thermoscope or Differential Thermo- 

 meter.' 2. ' Researches on Heat, Showing the Effect 

 of Difference of Surface on Radiation.' 5 '' 3. 'Farther 

 Experiments on the Effect of Blackening the Surface.' 

 4. ' Researches Continued on the Different Properties 

 of Bodies with Respect to Radiation and to Conducting 



