glacial investigation in America, where some of the fullest researches have been made, the author engaged Prof. T. C. Chamberlin to prepare a summary of the American evidence, which is presented in the forty-first and forty-second chapters of the book. An interesting confirmation of the author's conclusions, drawn most largely from observations of British geology, is afforded by those of Prof. Peunck, of Vienna, which are similar, though derived from the study of a different field the—Alpine lands.
Geological Survey of New Jersey. Annual Report of the State Geologist for the Year 1893. By John C. Smock, State Geologist. Trenton: John L. Murphy Publishing Company. Pp. 457.
The survey for 1893 was engaged in the continuation of the work on the surface formations of the State, on the greensand marl beds and the associated bed of the Cretaceous and Tertiary ages, on the study of stream flow and the general questions of water supply and water power, and on the examination of the clays of the State; and the collection of artesian or deep-bored well records was continued. The study of the surface geology by Prof. Rollin D. Salisbury was carried on mostly in the northern and central parts of the State. One of its fruits is the preparation of maps of the surface formations, separate from that of the underlying strata, in the beginning of the publication of which New Jersey leads. These maps may be said to make a new series, distinct from the topographic maps by their geology, and from the older geological maps in the absence of any representation of the older and underlying rock formations, except where they crop out and make the surface. They show the nature of the soils and sub-soils in general, and the deposits of sands, gravel, peat, shell marls, and other earthy beds, and also the bowlder-covered areas of the glacial drift. The work in the greensand marl belt and in the newer formations of the Tertiary age overlying the marl beds was continued, in co-operation with the United States Geological Survey, under the charge of Prof. William B. Clark. The survey of the crystalline rocks of the Highlands was carried on by the United States Survey, and was in charge of Dr. J. E. Wolff. The subjects of water supply and water power were further investigated and studied by Mr. C. C. Vermeule, and the collection and tabulation of data for the volume of water supply were carried forward. Mr. Vermeule has prepared a map of the State showing the water sheds which are utilized for public water systems and those which are still available. Mr. Lewis Woolman has continued to collect the records of artesian wells put down in the southern part of the State; and his report contains, in addition, historical notes of wells and important generalizations on the water-bearing beds or horizons. Progress is reported in drainage surveys, and surveys for the reclamation of tidemarsh lands. Attention has been given to the adaptation of the trap ridges and highland regions to the purpose of natural parks and forest reservations. The last part of the report is devoted to a list of the useful minerals and mineral subtances which occur naturally in the State, and to notes on the localities and modes of occurrence. The volume contains the map showing water sheds, and is accompanied by a tube containing maps illustrating the distribution of intra-morainic and extra-morainic drift; of the extinct Lake Passaic; showing glacial striæ on the Palisade range; and of the vicinity of Hibernia, in the ore district.
General Hancock. By General Francis A. Walker. Great Commanders Series. New York: D. Appleton & Co. Pp. 332. Price, $1.50.
In telling the story of Hancock's life and military career General Walker draws attention to the fact that Hancock never commanded a separate army, and hence was never responsible for the plan, but only for the execution of the part intrusted to him, in the operations of the army with which he was connected. Hence he is to be estimated as an executive officer and not as a strategist: In two chapters his life is brought down to the great rebellion. Winfield Scott Hancock was the son of a lawyer who practiced a few miles out of Philadelphia. He went through West Point with the class of 1844, and served in the Mexican War, which began a couple of years after he graduated. From the evacuation of the city of Mexico until the civil war Hancock served much of
