Tuesday March 20, 1894

Discussed plans for warming Physical Obs^y. with M^r Crisp & decided on Grundy’s as the best. M^r Le Brun sent up his keys (two sets) to M^r Criswick.

William Christie, Astronomer Royal

RH says..... There is lots of information about John Grundy, his family and his heating and ventilation business online here. They obviously decided against the Blackman Ventilating Company discussed previously, although the heads of both companies seem to have been leaders in their fields.