[1857]: the year is given by the reference to Tyndall having given a gift to Walter Pollock (see letter 1343), and that Walter’s birthday fell on a Saturday in 1857.
next Saturday: 21 February.
my birthday: Walter Pollock (born 1850) was about to celebrate his seventh birthday. In letter 1337, his mother Juliet clarified plans for the party.
Please cite as “Tyndall1336,” in Ɛpsilon: The John Tyndall Collection accessed on