ACKNOWLEDGMENTS
For permission to quote from the Lismore Papers (as edited by Grosart, 10 vols.), I have to acknowledge my indebtedness to the Duke of Devonshire. I have also to thank Lady Verney for allowing me to quote from the Verney Memoirs, and Sir William Ramsay for permission to quote from his Presidential Address delivered to the British Association for the Advancement of Science, Portsmouth 1911. To the kindness of Sir Archibald Geikie I owe the permission to reproduce the portrait of Robert Boyle in possession of the Royal Society of London.
I remember with special gratitude the kind counsel given me, in the last months of his life, by the late Professor Edward Dowden.
My thanks are due, for advice and help, to Miss Elizabeth Dowden, Mr. Richard Bagwell, Mr. Irvine Masson, Mrs. Millar, Mrs. Townshend, and Mr. James Penrose.
I gratefully acknowledge the unfailing courtesy and helpfulness of the Librarians of the Edinburgh Public Library, the Signet Library, the University Library, and the Library of the Royal Society of Edinburgh.
Flora Masson.
Edinburgh, March 1914.