896 EXPEKIMENT STATION RECORD. 



station and elsewhere in New Jersey during 1890 to determine whether 

 supplemental irrio-ation is prolitaljle under such conditions; and oives 

 descriptions and statements of cost of a number of small irrigation 

 plants in New Jersey. In the experiments at the station the increase 

 in yield of small fruits due to irrigation was as follows: Blackberries, 

 1,038 qts. per acre, worth §93.42; raspberries, 329 qts. per acre, Avorth 

 $32.90; and currants, 311 c^ts. per acre, worth §31.10. The results of 

 similar experiments in other parts of the State with a variety of crops 

 confirm those obtained at the station. 



" So far as rainfall conditions are concerned, New Jersey belongs to 

 the so-called humid region, and may be considered t^-pical of the whole 

 eastern half of the United States. Judging from the results reported 

 in this bulletin, there seems to be no doubt that irrigation for fruits and 

 market gardens, even in regions where rainfall is normally abundant, 

 is a profitable undertaking." 



Storage of -water on G-ila River, J. B. Lippincott ( IVfdei' Suj^ply 

 and Irrig. I\(j)t/'S, U. S. Gtol. Survey, iVvv. 33, pp. 9S,j)Is. 33). — This 

 is a report on investigations undertaken in 1896 and 1899 with a view 

 to finding means of affording relief to the Pima, Papago, and ^Nlari- 

 copa Indians of the Gila River Reservation, who have been deprived 

 of an adequate supph" of water for irrigation hy diversion of the 

 supply at points in the Gila River watershed above the reservation. 

 The report gives some account of these Indians and of their use of 

 water for irrigation purposes; reviews the causes of the shortage of 

 water and the steps taken to correct it; discusses the water suppl}" 

 of the Gila River basin — precipitation, flow of streams, evaporation, 

 etc. ; and records the results of investigation of storage reservoir sites 

 at the Buttes, the Dikes, Riverside, San Carlos, Guthrie, and on Queen 

 Creek, with remarks oii irrigable land under the various proposed res- 

 ervoirs, the distribution of canals, and the organization of irrigation 

 districts. The bulletin also contains a paper by E. Duryee recording 

 the results of investigations on cement, undertaken "(1) to ascertain 

 whether by luiusually fine grinding of the cement its strength can be 

 appreciably enhanced and the quantity correspondingly reduced; (2) 

 whether it is feasible to use the rocks found at the dam sites for mak- 

 ing a sand cement; (3) whether Portland cement can be economically 

 made at these sites ;" the object being to lessen the cost of "Portland 

 cement in constructing the dams. 



As a result of the investigations the author advises the construction 

 of the San Carlos dam and makes various recommendations regarding 

 further investigations and the management of the stored water and the 

 lands to be irrigated. 



The conclusions of the author have been verified l)y J. D. Schuyler, 

 whose general conclusions and recommendations are incorporated in 

 the report. 



