Print run data for Royal Society journals 1665-1970

This spreadsheet contains all the data we have so far managed to gather on the print runs of the Philosophical Transactions and the Proceedings of the Royal Society. <br> Philosophical Transactions was founded in 1665, and split into series A and series B in 1887: there are therefore two tabs, dealing with Transaction before and after the split . <br> Proceedings was founded in 1831, and split into series A and series B in 1905: again, there are two tabs, dealing with Proceedings before and after the split. <br> The data are very, very incomplete. After the Royal Society took ownership of the Transactions in 1752, one might have expected better records of printing/publishing details - but print run rarely appears in the Council Minutes. The best data come from the period in the 19th century, when the journals were printed by Richard Taylor (later Taylor &amp; Francis) - and the archives of T&amp;F include ledgers giving details of the print runs. For the 20th century, there are only very occasional reports/reviews that mention print run (though a minimum estimate for print runs can be based upon the known circulation figures after 1955 - see separate file)