84 EXPEEIMENT STATION RECORD. 



Asperg'illosis of canaries, D. A. de Jong (Centbl. Bakt. [etc.], 1. Ahf., Orig., 

 66 (1912), No. 5-6. pp. 390-393; ahs. in Vet. Rec, 25 (1913), No. 1281, p. J,53).— 

 The chief micro-organisms isolated from sick and dead canaries which came 

 from the breeding establishments of a municipality in the Netherlands were 

 diplococci and Aspergillus fvmigatus. It was proved by intravenous injections 

 that this Aspergillus was the cause of the disease. 



EURAL ENGINEERING. 



Biennial report of the state engineer of Wyoming, A. J. Parshall (Bien. 

 Rpt. State Engin. Wyo., 11 (1911-12), pp. 20S, pis. i//).— This notes the com- 

 parative development of engineering works in the State since 1900, and includes 

 reports of the board of control, division superintendents, and the state board 

 of examining engineers, and on progress under the Carey Act, the work of the 

 United States Reclamation Service, state highways, and stream gaging. A 

 large amount of stream flow data and a list of original ditch, enlargement, and 

 reservoir permits accompany the report. It is stated that, during the years 

 1911 and 1912, 2,127 permits were issued providing for the irrigation of 

 557,254.62 acres of laud at an estimated cost of $12,706,612.84, which is an in- 

 crease of more than $10 per acre over the cost for the preceding 2 years. 



Water powers of the Cascade Range. — II, Cowlitz, Nisqually, Puyallup, 

 White, Green, and Cedar drainage basins, F. F. Henshaw and G. L. Parkee 

 (U. S. CJeol. Survey. Water-Svpply Paper 313, pp. 170, pis. 29, figs. iO).— This 

 report is the second of a series dealing with the water powers of streams 

 flowing from the Cascade Range in Washington and Oregon (E. S. R., 24, p. 

 313). It gives monthly estimates of river discharges from the Cowlitz, Nis- 

 qually, Pu.va]lup, White, Green, and Cedar drainage basins and describes the 

 power possibilities of streams with the purpose of indicating in a general way 

 the power resources of each basin and the relative values of the individual 

 power privileges. 



Numerous river plans and profiles of the drainage basins accompany the 

 report. 



Experience with wood-stave pipe in irrigation, R. K. Tiffany (Engin. 

 News, 69 (1913), No. 6, pp. 2J,J,-2Jf7, figs. 3).— This article gives the results of 

 extended experiments with wire wound and iron banded wood-slave and bored 

 wood pipe from 4 to 55 in. in diameter, used for irrigation purposes on the 

 Yakima pro.i'ect of the U. S. Reclamation Service. 



A considerable portion of the article is devoted to leaks in a 55 in. stave 

 pipe under 190 ft. head and laid beneath a river. Several small leaks in the 

 pipes caused the cutting of the steel bands by the escape of silt bearing water, 

 after which the water pressure broke through the end of the unsupported stave. 

 It is concluded that the one great essential of continuous service from wood- 

 stave pipe not kept filled throughout the year or used in dry soil is a thorough 

 and complete coating of asphalt on the outside, to cover not only the body of 

 the pipe but also all joints, collars, and other fittings. Wooden collars for 

 joints do not give as good results as metallic collars, since it is difiicult to 

 secure a tight fit with the wooden collars, and the additional thickness of the 

 shell at this point and the break in the continuity make complete saturation 

 of the joints impossible, causing decay at these points which spreads until a 

 leak develops. 



Irrigation, F. H. Peters et al. (Dept. Int. Canada Ann. Rpt. 1912, pt. 6, 

 pp. 179-269, pis. 9, figs. 20). — This report includes general irrigation and crop 

 reports from the various irrigation districts by the division engineers, R. J. 

 Burley, W. A. and F. F. Fletcher, and J. C. Milligan ; a report of special in- 



