388 EXPERIMENT STATION RECORD. 



rump 2.4r)4 gal. of water from a 43-ft. well, shell 264 bu. of corn, grind 48.6 bn, 

 of corn, separate tlie milk from 300 cows, do 20 weekly washings, grind 20 

 sickles, or operate the machinery in harvesting 4 acres of gi-ain. 



Power that is needed {Farm Machinery, 1912, No. 101.), p. 15). — Data are 

 given from actual tests of gasoline engines showing the power required for 

 driving the different machinery about the farm, 



[Generation of electricity by wind power in Denmark], V. Magekstein 

 (Monatsh. Lanclw., Jj (1911), No. 2, tip. 35~J,0, figs. 3 ) .—Attention is called to 

 the use of wind power for generating electrical energy for farm use, and a 

 brief description and discussion of private and central plants are given with a 

 short statement of cost. 



What electricity means to the farmer, P. A. Bates {Nat. Land, and Irrig. 

 Jour., 5 {1912), No. 5, pp. 79, figs. 5). — This article deals with the use of 

 electricity on the farm, pointing out the advantages of immediate availability, 

 adaptability, simplicity, economy, and reliability, and comparing farm work 

 as done by electricity and as done by the old hand methods. 



Electric light for the farm, N. H. Schneider {New York and London, 1911, 

 pp. IX+85+YIII-\-86, figs. 65).— This work consists of two pai-ts. 



Part 1 contains pracical information on small, low-voltage electric light 

 plants, operated by storage batteries, suitable for farms, isolated houses, and 

 countiy homes in general, explaining in detail how to estim.-ite the size and 

 number of lights required, their best location, and the most convenient means 

 of control, and how to estimate the required capacity of, install, and operate 

 the plant necessary to furnish the electric current. Part 2 deals wih the 

 wiring of houses for electric lights, with special reference to low-voltage bat- 

 tery systems, giving information on planning and installing the general wiring, 

 installing the lights, switches, etc., methods of wiring for special buildings and 

 to suit unusual conditions, and the general estimating of wiring material re- 

 quired. A chapter is included describing some typical plants. 



Lighting system for the farm {Farmer, 31 {1912), No. 19, pp. 686, 688, figs. 

 2). — A description is given of the various modei'n systems used for supplying 

 artificial light to the farm home, viz, acetylene gas, gasoline gas, electricity, 

 blaugas, and improved lamp systems. 



The electric system is considered the most efficient, although it has the high- 

 est initial cost. The following approximate costs are given for average-sized 

 installations of each system : Acetylene gas $250, gasoline gas $100 and up, 

 electricity from $350 to $450. and blaugas from $100 lo $200. 



Lighting with alcohol and kerosene, R. M. West {Minnesota Sta. Bui. 126, 

 pp. 97-127, figs. 4)- — The work outlined in this bulletin is primarily intended to 

 determine the relative lighting values of industrial alcohol and kerosene, and in 

 connection with this many factors of secondary importance are considered, such 

 as safety, health, eyesight, cleanliness, cost of maintenance, original cost of 

 lamp, and ease of manipulation. Five portable lamps, including both the mantle 

 and wick types, and 1 lamp intended especially for alcohol, were selected for 

 comparison and when possible both alcohol and kerosene were burned in the 

 same lamp with the same mantle. The method of light measurements employed 

 was the comparison of the lights with the light of a standard English candle by 

 means of an open-bar photometer. 



Tabulated results of these tests are given and are graphically represented by 

 6 sets of curves showing the ratio of the candlepower of the light to the candle- 

 power hours per gallon of fuel. A seventh set of curves estimates the number 

 of candlepower hours obtainable for $1 in the case of the common illuminants, 

 and shows that with kerosene at 6^ cts. per gallon a 10 candlepower light may 



