as a branch of the military art. The subjects of concealment of field works and of the siting of trenches with respect to the terrain, as well as the employment of field fortifications in the attack of positions, are quite in line with the latest ideas.

While professing to be merely notes on the text books, the work is quite as useful as a text book itself and in some respects more so, as all really important and useful information is presented in the most compact manner possible..

In Chapter XII is given an excellent example of the applicatory system of instruction in the fortification of a section of terrain, which is carefully worked out as regards tools, materials, and time. This chapter will be found particularly instructive to the company officer of engineers. The work closes with a series of examination questions appropriate to the several chapters.

The typography is clear and the plates more than excellent, in which respect the work is decidedly superior to many recent foreign works on field fortification.-J. E. K.

SELECTED ARTICLES OF ENGINEERING INTEREST

Compiled by Henry E. Haferkorn, Librarian, Engineer School.

In the lists of selected articles published, the publication is referred to by the number preceding its title in the following list. The following abbreviations will be used: I, for illustrated; D, for diagrams.

(29) Transactions, American Society of Civil

Engineers.

(30) Professional Memoirs, Corps of Engi

neers.

(31) Journal of the Royal Artillery (Wool wich, England).

(32) Royal Engineers' Journal (Chatham, England).

(33) Proceedings Brooklyn Engineers' Club. (34) Concrete.

(35) Bulletin de la Presse et de la Bibliographie militaires (Brussels).

(36) Internationale Revue ueber die gesamten Armeen und Flotten (German and French). (Dresden.)

(37) Revue d'Artillerie (Paris).

(38) Kriegstechnische Zeitschrift (Berlin). (39) The Contractor.

(40) Cement Era.

(18) Journal of Western Society of Eng (41) Canal Record (Ancon, C. Z ).

neers.

(19) Journal of Franklin Institute.

(42) Proceedings, Engineers' Society of Western Pennsylvania.

(20) Journal of Royal United Service Insti (43) Journal, United States Artillery. tution (London).

(21) Proceedings, American Society of Civi Engineers.

(22) Proceedings, Engineers' Club of Phila delphia.

(23) Municipal Engineering.

(24) Municipal Journal and Engineer.

(25) Railway Age Gazette.

(44) Transactions, Society, of Engineers

(London).

|(45) Journal, Association of Engineering Societies.

(46) United States Naval Institute. Proceedings.

(47) Revue du Genie Militaire (Paris). (46) La Technique Moderne (Paris).

(26) Revue Generale des Chemins de Fer (49) Electrical World. (Peris).

(27) Scientific American.

(28) Scientific American Supplement.

ARMORED CARS.

Armored cars in the Mexican revolution.

ASTRONOMY.

(50) Electrical Review (Chicago).

(51) Journal, Military Service Institution, 52) Barge Canal Bulletin.

(27), April 22, 1911. I.

BAR HARBORS.

Notes on the bar harbors at the entrances to Coos Bay and Umpqua and Siuslaw rivers, Oregon. M. L. Tower. (29), vol. 71, March, 1911. D.

BREAKWATERS.

Breakwaters on the west coast of Jutland. C. Van Langendonck. (28), April 8, 1911. I.

BULKHEADS.

A light timber bulkhead. D. C. Webb. (14), April 13, 1911. D.

CANALS.

Canals and inland navigations of Ireland. (10), May 12; June 2, 1911.-Canals in the service of coast defense. Trans. R. Van den Corput. (43), May-June, 1911.Dredging operations in Everglades. (39), May 1, 1911. D. I.-Existing and projected canal system of the Salt River irrigation project. Arizona. (12), April 12, 1911. D. The Granite Reef diversion dam, Arizona. (15), May 20, 1911. I.Hydraulic dredge on canal excavation. P. J. Cleaver. (39), May 15, 1911. I.Irrigation in the land of the Five Waters, the Punjab, India. W. G. Bligh. (14), May 18, 1911. D. Irrigation projects of the southern Alberta Land Company. (15), May 27, 1911. D. I.-Method of canal excavation using a locomotive crane with a drag line bucket. (12), May 10, 1911. I.-The Mid-Scotland ship canal. (10), April 7, 1911.-New ship lock and locks of St. Marys river. J. C. Mills. (27), June 3, 1911. D.-Notes on three irrigation projects in the Punjab, India. A. B. Segur. (14), May 18, 1911. D. I.-Paris to Dieppe canal. (10), April 7, 1911.-Proposed drainage canal and levee work for the protection of East St. Louis from floods. (12), March 15, 1911. D.-Pumping plants on the Manchester ship canal. (10), March 24, 1911. D. I.-Remedy in waterways. F. H. Snow. (Journal of the Engineers' Soc. of Pa.), April, 1911.-Suez canal and its traffic. (15), March 25, 1911.-The Tieton Canal. E. G. Hopson. (29), vol. 71, March, 1911. D. I.-The U. S. Government and the New York State canals. Part 2. . Symons. (52), Feb., 1911.The Paris Harbor Project. (30), July, 1911. D. The Brussels ship canal. (30), July, 1911. D.

CAUSEWAYS.

Construction of the Galveston causeway. I., (15), May 27, 1911. I.

COAST DEFENSE.

Damp walls.

A study of causes and remedies.

Brig. Gen. W. A. Jones. (13), June,

1911. I.-Defence of the land front of a coast fortress, .. H. de T. Phillips. (31), April, 1911. I.

COFFERDAMS.

Progress in raising the U. S. Battleship Maine. (15), May 20, 1911. D.; Progress on the cofferdam around the wreck of the Maine. (14), May 18, 1911. I.-Rio

Guaso irrigation dam with automatic shutters. (15), May 13, 1911. D. I.
COMPRESSED AIR.

Profitable refinements in contractors' compressed-air plants. F. Richards. (14), April 20, 1911. D. I.

CONCRETE.

Cost of a reinforced concrete retaining wall. (12), March 22, 1911. D.-Damp walls. See under Coast Defense.-Demolishing a reinforced concrete building. (28), June 3, 1911. I.-Field-made rig for raising panels and concrete. (7), May, 1911. D. I. Electrolytic corrosion of iron in concrete. C. F. Burgess. (18), May, 1911. I. Reinforced-concrete hollow caissons floated into place in piers, Kobe Harbor works. (14), June 1, 1911. I.-Reinforced concrete tower for marine leg. (15), April 29, 1911. D. I-Reinforced concrete trestle on the Rock Island Railroad. (15), April 29, 1911. D. I.-Reinforced concrete work in cold weather. G. C. Newton. (14), June 1, 1911. D. I.-Simple formula for calculating the strength of reinforced concrete. E. Stokes-Roberts. (32), May, 1911.-Spacing of stirrups in reinforced concrete beams. T. E. Kelsall. (34), June, 1911.-Two reinforced concrète coal pockets. M. S. Falk. (29), vol. 71, March, 1911. D. I.-Reinforced concrete crane runways. (39), March 15, 1911. I.