Readers of the Popular Science Monthly have already had an opportunity of perusing some of the narrative and observations which Professor _Heilprin_ has embodied in his _Alaska and the Klondike_.[29] In it he has attempted to portray that remarkable region in its true aspects. Professor Heilprin is well able to do so, for he is a keen observer and looks with a scientific eye, and his literary style is free and graphic. He made a summer journey to the region last year (1898), between the end of July and the middle of October, with the object of being "able to determine between fact and fancy, and to obtain a personal knowledge of the region and its varied conditions." What he saw and heard is here presented. While by no means pretending to that degree of accuracy and of proper insight which can only come with more protracted and intimate knowledge, the author believes that he has given a careful and unprejudiced account. Persons whose ideas of the regions about Dawson are associated with visions of arctic severity and sterility may be a little surprised at reading of one's looking from the heights about the town northwestward "over a most lovely stretch of river, with hillsides closely besetting it, and with a vegetation of most striking brilliancy and vigor," and of the eye turned southward, losing, in consequence of the different configuration of the ground, "all but the beautiful verdant slopes which still mark out the valley"; of the beholder being able for hours at a time to sit watching the beauty of the landscape; and of the difficulty of recommending to one endowed with a proper appreciation for the works of quiet Nature "a more enjoyable exercise than to take in a bit of this wonderful land of the North, and with it a mellow sunshine that is not to be found elsewhere." These pretty landscape pictures of the arctic summer are followed by accounts of society at the Klondike as the author found it, of the trail, steamboat travel, and the routes to the region; a description of the placers, their occurrence, and the methods of mining; observations on the physical history and geology of the gold fields; and a summary of the laws regulating mining. In the summary of his geological discussion the author expresses the opinion that it seems probable that "the Klondike gold region is merely a fractional part of a discontinuously continuous auriferous tract that extends in a westerly course into the heart of Alaska, and southward into British Columbia." [Footnote 29: Alaska and the Klondike. A Journey to the New Eldorado. With Hints to the Traveler and Observations on the Physical History and Geology of the Gold Regions, the Conditions and Methods of working the Klondike Placers, and the Laws governing and regulating Mining in the Northwest Territory of Canada. By Angelo Heilprin. New York: D. Appleton and Company. Pp. 315. Price, $1.75.]