494 EXPERIMENT STATION KECOED. 



and tlie second with the soil and its relation to plants. Lists of reference books, 

 apparatus, and chemicals suitable for the work outlined are appended. 



Children: Their care, training and happiness as future citizens, J. J. 

 Kelso {Ontario Dept. Agr. Bui. 186, irp. 20, figs. 10).— This explains the chil- 

 dren's protection act of Ontario and the work that is contemplated under its 

 provisions. 



College extension in agriculture, edited by J. Hamilton {U. S. Dept. Agr., 

 Office Expt. Stas. Bui. 231, pp. S6).— This bulletin contains 11 addresses de- 

 livered at a series of conferences on college extension in agriculture held at the 

 Graduate School of Agriculture. Ames. Iowa, in July, 1910, and previously 

 noted (E. S. R.. 23, p. 407). 



List of state directors of farmers' institutes and farmers' institute lec- 

 turers of the United States, J. Hamilton ( U. S. Dept. Agr., Office Expt. Stas. 

 Circ. 105, pp. 13). — A revision of the circular previously noted (E. S. R., 15, 

 p. 418). 



Organization lists of the agricultural colleges and experiment stations 

 in the United States, Mary A. Agnew (U. S. Dept. Agr., Office Expt. Stas. 

 Bui. 233, pp. 100). 



MISCELLANEOUS. 



Twenty-second Annual Report of Colorado Station, 1909 (Colorado Sta. 

 Rpt. 1909, pp. 66). — This contains the organization list, a report of the director 

 discussing the function, work, and needs of the station, a financial statement 

 for the fiscal year ended June 30, 1909, a list of the exchanges of the station, 

 and departmental reports, of which that of the field entomologist and the horse 

 breeding investigations are abstracted elsewhere in this issue. 



Annual Report of Nevada Station, 1909 {Nevada Sta. Bui. 72, pp. 58, pis. 

 3). — This contains the organization list and reports of the board of control, the 

 director, and heads of departments. The report of the director includes a 

 financial statement for the fiscal year ended June 30. 1909. The experimental 

 work reported in the departmental reports is abstracted elsewhere in this issue. 



Twenty-third Annual Report of Vermont Station, 1910 (Vermont Sta. 

 Rpt. 1910, pp. XXIV+7U + [6]+745-751, pis. 22, figs. 109).— This contains the 

 organization list, a brief announcement concerning the station, a financial 

 statement for the fiscal year ended June 30, 1910, a report of the director on 

 the publications and work of the station, and reprints of Bulletins 144-151, 

 previously noted, and of Bulletins 152-154 and Circulars 4 and 5, abstracted 

 elsewhere in this issue. 



Concerning Bulletins 145, 147, 148, and 150 (Vermont Sta. Circ. 5, pp. 

 2). — This contains brief poiiular summaries of bulletins previously noted. 



A neglected field in photomicrography, S. B. Doten (Nevada Sta. Bui. 73, 

 pp. 9-15, pis. -'/, fig. 1). — An apparatus is described for photographing opaque 

 objects as they appear under the simple microscope, and its use is discussed. 

 The mechanism is especially adapted to the amplification of the image to exact 

 magnifications of from i of 1 diameter to 15 diameters. 



" The construction of this vertical camera stand lies well within the powers 

 of any ordinary skillful workman. . . . The essential features of construc- 

 tion are of the simplest: merely a heavy base, a standard free from vibration, 

 a carriage that may I)e moved up and down the upright standard, and a 

 camera with detachable front and long bellows connected by an adapter with 

 the horizontal arm of the dissecting microscope." 



