To Mr. F. R. Starr, Engineer, 30 Canongate, Edinburgh. IF Mr. James Starr will come to-morrow to the Aberfoyle coal-mines, Dochart pit, Yarrow shaft, a communication of an interesting nature will be made to him. "Mr. James Starr will be awaited for, the whole day, at the Callander station, by Harry Ford, son of the old overman Simon Ford." "He is requested to keep this invitation secret." Such was the letter which James Starr received by the first post, on the 3rd December, 18-, the letter bearing the Aberfoyle postmark, county of Stirling, Scotland.