Note 20 — Chapter II
Reading edition
Not the so-called colour or "chameleon" top sold in the toy-shops, but the more scientific toy procurable of opticians, together with the perforated discs of Mr. John Graham, M.R.C.S., of Tunbridge, Kent.
Reading edition
Not the so-called colour or "chameleon" top sold in the toy-shops, but the more scientific toy procurable of opticians, together with the perforated discs of Mr. John Graham, M.R.C.S., of Tunbridge, Kent.