164 



EXPERIMENT STATION RECORD 



Compsilura— 



concinnata, dispersion in New England, (33) 



254. 

 concinnata, notes, (37) 459, 764. 

 oppugnator n.sp., description, (31) 456. 

 Compsomyia macellaria, relation to myiasis aurium, 



(31) 777. 

 Comstockiella sabilis in California, (37) 563. 

 Conarachin, chemistry of, (37) 8, 501. 

 Concanavalin — 



chemistry of, (37) 8. 

 -studies, (40) 308. 

 Conchaspis angroeci— 

 notes, (27) 255. 

 on vanilla, (40) 56. 

 Conchita peliida, culture, (34) 736. 

 Conchuela affecting Sudan grass, (33) 747. 

 Concrete — 



aggregates for, (34) 87, 485, 685. 



aggregates, specifications, (36) 683. 



aggregates, tests, (31) 91; (38) 593. 



amount of water for, (35) 493. 



arch bridges, internal temperature range, (29) 



786. 

 as affected by- 

 acids, oils, and fats, (29) 184. 



alkali, (32) 381, 787. 



alkali salts and sea water, (29) 686. 



calcium chlorid, (36) 286. 



hydrated lime, (31) 687. 



hydrogen sulphid, (28) 589. 



moisture, (27) 891. 



salts, (30) 589. 



silage, (32) 590. 



various substances, (29) 891. 

 as protection for wood-stave pipe, (34) 890. 

 beams, reinforced, design, (28) 86. 

 blast-furnace slag, tests, (39) 87. 

 blocks, machines for, (26) 91; (30) 487. 

 bridges- 

 construction, (32) 686. 



reinforced, test, (31) 91. 



specifications, (34) 685. 



treatise, (30) 788. 

 buildings, reinforced, tests, (30) 293. 

 chute for water, (33) 586. 

 coating with tar, (34) 889. 

 construction — 



college instruction in, (36) 400; (38) 95. 



for gardens and lawns, (27) 645. 



inspection, treatise, (30) 487. 



manual, (32) 188. 



on livestock farms, (27) 89. 



treatise, (27) 484; (36) 188. 



work in cold weather, (29) 291. 

 culverts — 



cost data, (37) 885. 



plans, (32) 485, 086, 884. 



specifications, (33) 291. 

 destruction by moor water, (31) 290. 

 draintile— 



as affected by alkali, (34) 87, 584. 



construction, (34) 685. 



durability, (35) 386; (39) 393. 



reinforced, tests, (40) 787. 

 drilling as a test for, (30) 787. 

 durability in alkali soils, (39) 86; (40) 386. 

 effect of too much water in mixing, (29) 386. 

 effect of varying the percentage of water in, (33) 



292. 

 electrolysis of, (28) 589. 

 expansion and contraction, (37) 884. 

 farm buildings, construction, (32) SS8. 

 fence posts, construction, (28) 290: (34) 487, 685. 

 flat slabs, design, (34) 685. 

 flow under sustained loads, (38) 290. 

 freezing and thawing, (40) 786. 

 friction on various sub-bases, (38) 290. 

 grain elevators, design, (34) 685. 

 gravel and sand for, (35) 493. 

 gravel deposits in Iowa, (32) 188. 

 hydrated lime in, (35) 291; (40) 788. 

 in sanitary farm equipment, (34) 273; (36) 675. 

 interior temperature during setting, (26) 214. 

 lining for canals, placing, (35) 186. 

 lining for irrigation canals, (32) 380, 481. 

 materials, tests, (35) 390. 

 mixtures, proportioning, (40) 787. 



Concrete— Continued, 

 oil-mixed — 



description and use, (28) 85. 



tests, (30) 487, 889; (33) 685. 

 overwet, tests, (31) 387. 

 pavements — 



cracking and buckling, (38) 891. 



design, (36) 890. 



failure of, (30) 386. 



for roads, (33) 685. 



stresses on, (31) 186. 



tests, (30) 387. 



use of hydrated lime in, (31) 387. 

 permeability tests, (32) 788. 

 pipe for irrigation, (36) 583. 

 pipe, reinforced, tests, (31) 784. 

 Portland cement, proportions, (39) 86. 

 posts, mold for, (32) 788. 

 preparation and tests, (35) 790. 

 pressure pipe, construction and tests, (2S) 484. 

 proportioning, (29) 386; (32) 484. 

 protection against destructive agents, (29) 386. 

 protective coatings for, (31) 784. 

 reinforced — 



as affected by salt in warm climate, (40) 787. 



construction, treatise, (31) 186. 



designing and estimating for, (31) 290. 



for farms, (27) 589. 



shrinkage and time effects in, (34) 787. 



treatise, (27) 688. 

 reinforcement bars, strength tests, (36) 684. 

 resistance to wear, (34) 484. 

 roads— 



and pavements, treatise, (30) 386. 



bituminous coatings for, (38) 692. 



construction, (27) 386; (31) 289, 290; (33) 781, 

 782, 890; (35) 390, 492; (36) 285; (39) 687. 



construction, standards for, (31) 289. 



contraction and expansion of, (31) 290; (37) 

 884. 



cracking, (31) 185; (35) 492; (37) 88. 



design, (36) 890. 



expansion, (31) 290. 



gradation of aggregates for, (35) 584; (37) 787. 



hydrated lime for, (34) 787; (35) 86. 



in New York, (27) 890. 



in Ontario, (33) 289. 



in Wayne Co., Michigan, (27) 789. 



measuring wear of, (34) 787. 



mixtures for, (37) 490. 



of Lake County, Ohio, (36) 384. 



pamphlet, (30) 589. 



reinforcement for, (36) 587. 



resistance to wear, (34) 484. 



roller finishing, (38) 189. 



specifications, (34) 685. 



specifications and construction, (30) 290. 



treatise, (30) 386. 

 sand for, (32) 484. 

 sand for, testing, (31) 386. 

 sand, grading, (38) 389. 

 screened gravel for, (39) 87. 

 silos, handbook, (26) 790. 

 slab bridge design, (40) 189. 

 slabs, reinforced, loads for, (35) 86. 

 slabs, reinforced, tests, (35) 290; (36) 788; (38) 



490. 

 slabs, tests, (38) 189, 289. 

 strength as affected by — 



moisture, (29) 487. 



saturation, (30) 293. 



temperature, (34) 889. 



water, (37) 490. 

 strength, tests, (34) 685. 

 tile, tests, (26) 685. 



treatise, (28) 186; (35) 289, 390; (36) 285; (37) 590. 

 use in drainage and irrigation, (32) 787, 

 use in farm buildings, (28) 487; (29) 689. 

 use in irrigation, (37) 281. 

 use in the garden, (37) 746. 

 use of blast furnace slag in, (33) 684. 

 use on farms, (30) 487; (32) 86; (34) 485; (38) 87, 



291, 292. 

 V. macadam for roads, (33) 588. 

 viaduct, construction, (34) 86. 

 washed sand and gravel in, value, (29) 183. 

 waterproofing, (28) 289, 290; (29) 787; (35) 493. 

 wear tests, (36) 683. 

 wet, pressure on forms, (35) 582. 

 wet, pressure test, (30) 293. 

 work, forms for, (31) 590; (32) 86. 



