942 



EXPERIMENT STATION RECORD. 



Methods for the investigation of canceling' inks and other stamping inks, 



E. E. EwELL ( IJ. S. Df'pt. Agr., Bureau of Chemistry Circ. 12, pp. 8). 



New laboratory apparatus, C. Zahn {Chem. Ztg., 'S7 {1903), No. 7, pp. 69, 70, 

 figs. 3).- — Descriptions are given of burettes with automatic arrangements for filling 

 to the zero point, and of a pipette for use in Gerber's milk test. 



Report of the Swedish chemical control stations for 1900, A. Lyttkens 

 {Ber. K. Lantbr. Styr., 1900, p>}). 335-357). — The 10 chemical control stations sup- 

 ported by the Swedish Government examined 54,691 samples of agricultural prod- 

 ucts during the year, of which number over 46,000 were dairy products. The 8 

 chemical stations sui:)ported by county agricultural societies examined 3,687 samples, 

 of which numljer nearly two-thirds were dairy products. Summaries of the results 

 of analyses of soils, fertilizers, feeding stuffs, dairy products, etc., for all stations are 

 presented in the report. — f. w. woll. 



BOTANY. 



North American species of Leptochloa, A. S. IIiTtiuocK {V. S. Dcpt. Agr., 

 Buri'uu of I'Umt Judust.rg Bui. 33, pp. 24, ]>ls- 0, figs. 16). — In order to clear up some 

 of the bibliographical and taxonomic difficulties iu this genus the author has reviewed 

 the North American species, giving a key and diagnostic description to those species 

 occurring within the range indicated. With one or two exceptions most of these 

 species are confined to the warmer parts of the country and one species {Leptochloa 

 ihiliin) is an important range grass in the Southwest. 



Notes on the poisonous plants of Nebraska, C. E. Bessey {Proc. >S'or. Prom. 

 Agr. Sri. 1902, pp. 34-41)- — A general sunnnary is given of a more extensive paper 

 in which 12 species of plants reputed poisonous to man externally, 29 internally, 

 and 35 species poisonous to stock are described. In the summary only those are 

 enumerated and described which are rather definitely known to be injurious. 



Notes on fungi, C. G. Llovd {Mycologicul Notes, 1903, No. 13, pp. 121-132, pis. 4, 

 figs. :/). — Keys are given, together with technical descriptions of the species of Catas- 

 toma and Mitremyces. Miscellaneous notes are also given of Geaster fortiicatus, 

 Dictybole texeusis, Torreitdiu jiulclwlln , etc. 



Note on the water content of certain plants, W. R. Lazenuy {Proc. Soc. Proui. 

 Agr. Sci. 1902, pp. 195-200). — A report is given (jf a series of observations made upon 

 the water content of a number of plants on account of the bearing of this factor on 

 the effect of drought and frost on the plants. The accompanying ta])le shows the 

 percentage of water in the foliage and twigs of a number of varieties of fruits: 



Percentage of vxiter iu foliage and twigs. 



Variety. 



Delaware grape 



Concord grape . ; 



Ostheim cherry 



Ida cherry 



Snyder blackberry 



Wilson, Jr., blackberry 



Duchesse pear 



Keiffer pear 



Foliage. 



'1^1?" October-. 



Per cent. 

 .57. 80 

 53.78 

 60.04 

 51. 40 

 45. 50 

 42. .51 

 45. 78 

 48.60 



Per Of lit . 

 48. 35 

 49.84 

 41.63 

 48. 64 

 45. 71 

 41.17 

 44.47 

 45.70 



Twigs. 



March 23. April 2. 



Per cent. 

 39.89 

 42.00 

 47. 15 

 ,53. 11 

 46. 86 

 49. 57 

 49. 55 

 51.44 



49.66 

 51. 59 

 49.01 

 46.66 

 51. 82 

 51. 35 



The percentage of moisture in a numV)er of forest trees was also determined at dif- 

 ferent periods, the average percentage being shown in the accompanying table: 



