Dr. Van Dyke; to Messrs. Longmans, Green & Co. for an extract from Mr. Weyman; and to The Century Company for Mr. Riis's anecdote of John Binns. Extracts from Hawthorne are used by permission of Messrs. Houghton, Mifflin & Co., publishers of the works of that author. Particular acknowledgment is due to Professor W. F. M. Goss, of Purdue University, who has not only allowed the authors to reprint a chapter from his recent treatise on "Locomotive Sparks" (New York, John Wiley & Sons), but has given them liberty to adapt it to their purpose by a slight simplification of technicalities. The story of "Rumpelstiltskin" is taken from the excellent translation of Grimm by Margaret Hunt (London, George Bell & Sons).