Genre:

Announcement

Subjects:

Invention, Patents, Heat, Industry

    Gives details of a recently 'patented [...] simple invention' which gives extra heat to homes while 'diminishing to an appreciable extent the waste of household coal'. The author, who claims to have used 'the invention both at the office and in my own house', draws attention to 'the reckless rate at which we are consuming the coal supply of the world', but also notes some disadvantages with this new method of heating.