REPORT ON THE OPERATIONS OF EXCHANGES. 135 



1884, 

 July 10. Professional notes. By Capt. Edward Maguire, Corps of Engineers, U. S. 



A. 2 plates. 8vo. Paper. 28 1». 

 July 28. Studies on Coast Defense applied to the Gulf of Spezia. By Cajsar 



Guarasce, Colonel of Engineers. 8vo. Paper. Ill plates. 20 p. 



Burlington, lo\ya, during the mouth of October, 1879. Illustrated 



by one sketch and 41 plates. By Maj. Alexander Mackenzie. 



8vo. Paper. 38 p. 

 Sept. 10. Report on current-meter observations in the Mississippi River, near 



Ordnance Office. 

 Ordnance notes : 

 Jan. 10. No. 321, 1883. Experiaients with small shot. 8vo. Paper. 17 p. 



No. 317. The effects of the bombardment of the forts of Alexan- 

 dria, July 11, 1882. 3 plates. 8vo. Paper. 48 p. 

 Mar. 22. No. 323. Machine guns. 3 plates. 4to. Paper. 23 p. 



No. 325, 1883. Account of the construction of bridges over the 

 Kabul River, near Jalalabad, during the operations in Afghan- 

 istan, 1880. 5 plates. 4to. Paper. 9 p. 

 No. 326, 1883. Railways for military communications in the field. 



3 plates. 4to. Paper. 23 p. 

 No. 327, 1883. Provisional fortification. 10 plates. 4to. Paper. 



8 p. 

 No. 328, 1883. Krupp's works. 4to. Paper. 16 p. 

 No. 329, 1884. Trajectory of a projectile iw I'aoio. 4to. Paper. 5 p. 

 June 30. No. 324. Metallurgy of iron, by First Lieut. Constantino Chase, 



Third Artillery. 2 plates. 129 p. 

 No. 330. Mano-la Tour and Gravelotte, by Lieut. John Bigelow, jr., 



Tenth Cavalry. 2 plates. 69 p. 

 No. 331. Fabrication of 8-inch Eureka projectiles. 

 No. 332. Steel for gun hoops. 4to. Paper. 5 p. 

 No. 333. The 80-tou steam hammers of Creusot and Saint Chamond. 



2 plates. 14 p. 

 No. 335. Field artillery. 4to. Paper. 35 p. 

 No. 336. Paints and lacquers for artillery material. 11 p. 

 No. 337. Practical instructions in gunnery. 2 plates. 18 p. 

 No. 338. A visit to the artillery practice ground at Jueterbogk. 



1 plate. 4 p. 

 No. 339. Improved capstan. 1 plate. 6 p. 

 No. 340. Target practice — information for soldiers. 5 p. 

 No. 341. Machines for the physical tests of metals — the Olsen test- 

 ing machine. 3 plates. 9 p. 

 No. 342. Probability of fire. 4to. Paper. 7 p. 

 No. 343. The Hawaiian Islands. By C. E. Datton. 21 p. 

 No. 344. Stencil outfit. 2 plates. 4to. Paper. 3 p. 

 Notes on the construction of ordnance : 

 June 30. No. 25. Shrinkage tests of steel hoops for cannon. 2 plates. 4to, 



Paper. 47 p. 

 No. 26. Fabrication of projectiles. 2 plates. 9 p. 

 Ordnance notes: 

 July 18. No. 334, February 5, 1884. 4to. Paper. 15 p. 



^ No. 349, May 22, 1884. 2 plates. 4to. 4 p. 



No. 350, May 29, 1884. 5 p. 



Vol. XI (Nos. 320 to 333, inclusive). 4to. Paper. 8 p. 

 July 21. No. 348, May 19, 1884. 4to. Paper. 9 p. 



