Description | 'Dear Sirs, Dr Hopkinsons paper could formerly be had in separate form, but is now out of print. You can purchase Part 1, 1886, of the Philosophical Transactions ['Philosophical Transactions of the Royal Society'] (containing the paper), at Messrs Harrison & Sons, 45 St Martin's Lane, W.C. It was published at £1-8-0. Yrs [Yours] faithfully, T E James Clerk, RS [Royal Society]'. |