Manuscripts/Mixed Material Letter from Alexander Graham Bell to Mabel Hubbard Bell, April 17, 1917
Mrs Alexander Graham Bell
1331 Connecticut Avenue
I had to finish my letter yesterday rather hurriedly in order to catch the mail to Baddeck.
Spent the whole day yesterday (Monday Apl 16th) on board the Houseboat “Get-Away.”
Have already started some thoughts for development although Mr Baldwin and I have not yet had any Laboratory Conferences.
Why not develop my ideas concerning the utilization of waste heat for the benefit of the poor fellows in the Trenches. I know from past experiments that even the heat given off by a candle can be utilized and I have no doubt that some arrangement, in a dug-out or trench whereby a constant supply of hot water could be provided might be of considerable comfort. I am going to try a sort of cosey made of asbestos paper on a wire frame to be placed over a candle or lamp and see how much heat we can get from it and whether it will be of any use. This is not at all the sort of work I expected to start with but it is something I can do myself. Try the heating effect of a candle.