122 



EXPERIMENT STATION RECORD. 



converts the corrosive sublimate iuto an oxid, wLicli is of no value as 

 an insecticide. Tabulated data are /Aiven of yields in a cooperative 

 test of potatoes. 



Studies of Norwegian potatoes of the crop of 1895, J. Sebelien 

 {Xorsk Landinanshlad, 15 {1896), pp. 157-161). — Ninety-three sam])les 

 of potatoes from CA localities were examined by the author during 1895. 

 Twenty-six samples contained 13.9 per cent of starch or less, 19 11 to 

 15 per cent, 17 15.1 to 16 i^er cent, 23 16.1 to 17 per cent, and 8 over 17 

 per cent. The highest starch content obtained was 20.1 per cent. 

 About oae-third of the samples received were Magnum Bonum potatoes. 

 Experiments at Kalnaes Agricultural College gave results indicating 

 a very beneficial influence from Bordeaux mixture, both on the yield 

 and the quality of the potatoes grown (Magnum Bonum), shown as 

 follows : 



Effect of Bordemix mixture on potatoes. 



Date of plant- 



Date of dig- 

 ging- 



June 6 ; Sept. 28. 



MaySl Oct. 2... 



MaySl Oct. 3... 



May31 Oct. 3... 



Times treated. 



rSieldpert Starch 

 I acre. content. 



Pounds. 



Not treated ' 1 , 426 



Not treated ' 2, IIG 



Treated once I 2, 499 



Treated twice 2,858 



Per cent. 



Below IH. 9 

 14.3 

 14.5 

 16.3 



-F. W. WOLL. 



A Study of the fertilizing materials used by the sugar beet, W. 



SCHNEIDEWIND and H. C. MuLLEB {Jour. JaouIw., 44 {1890), Xo. l,pp. 

 1-30). — The authors treat the subject under the following heads: The 

 ash content of the sugar beet; the ash content of the leaves; the func- 

 tion of potavsh and soda, lime, magnesia, phosphoric acid, chlorin, the 

 plant acids, and nitrogen in the plant. Tabulated data show for the 

 different varieties under trial, both when kainit was applied and when 

 not, the sugar yield, iierceutage of sugar in the beet, percentage of ash, 

 and the eflect of the application of kainit on the content of nitrogen, 

 potash, soda, lime, magnesia, phosplioric acid, and chlorin; also the 

 effect of irrigation, and the composition of the dry substance. 



In conclusion the authors state that the ash content of the sugar 

 beet has diminished under cultivation, since a high sugar content cor- 

 responds with a low ash content. The ash content of the leaves has 

 not been influenced. 



The ash and nitrogen contents stand in inverse ratio to the sugar con- 

 tent. The potash content of the beets and leaves was increased by an 

 application of potash; and a corresponding effect upon the soda con- 

 tent was produced by an application of soda. 



Natural sugar in tobacco {Eew Misc. Bui., 1896, No. 110, pp. 49-55). — 

 In connection with the duty on tobacco in England an investigation was 

 made by H. Miller as to the sugar content of the dried and green 



