EXPERIMENTS MADE IN 1910 67 



interest in my experiments " though a sceptic " ; 

 and, subsequently, I had several conversations with 

 him in reference to them. When, therefore, I be- 

 gan to open some of my tubes, in March last, with 

 positive results, specimens of the contents of a few 

 of these were examined by him, and he became still 

 further interested in the matter. 



It was, therefore, finally agreed between us that 

 I should make the contemplated further series of 

 experiments in his laboratory, so that he might 

 witness the preparation of the solutions, the open- 

 ing and the re-sealing of the tubes, their subsequent 

 heating, and ultimately be present at the examina- 

 tion of the contents of some of them, with a view 

 to furnishing a short report as an addendum to 

 this memoir. 1 



Accordingly, on April 28th, I prepared 27 tubes 

 under his supervision, which were then heated in 

 his autoclave, 20 of them to 130 C. for 10", and 

 7 to 135 C. for 5". Some days later 17 other 

 tubes were also prepared in his laboratory, and 

 were heated, with the aid of one of his assistants, 



1 Unfortunately, owing to the serious illness of a member of 

 his family, and other causes, Professor Hewlett has been unable 

 to do the work originally contemplated, and supply a report on 

 some of the experiments and on some of the organisms found 

 in the tubes. 



