49 



tion, and a juolasses suitable for tlie grocery trade. Means sliould also 

 be fouud for working cane, even if its purity approximates 55 degrees 

 only. Agricultural cbemints feel, liowever, tliat it is best to begin \\\t\i 

 llie plant itself, and breed varieties free from objectionable compounds. 

 In support of tlieir position they i)oint to Maercker's sugar-beet seed 

 control, wliich in eight years' time lias aided in raising the i)urity of 

 beet Juice from 82 degrees to 90 degrees." 



Tests of a number of varieties were made at the station and by five 

 different farmers in dilferent i)arts of Delaware from seed sent from the 

 experimental tract of this Department in Kansas. 



"A summary of the season's work indicates that, for nse in August and 

 September, Folger's Early and Early Amber should be grown. After 

 the middle of September the Honey Dew, the White African, and prob- 

 ably the Kansas Orange should be available. After the 15tli of Octo- 

 ber the Late Orange and an allied variety will be found serviceable, 



"As above stated, a margin of profit can be calculated with cane av- 

 eraging 9 per cent of sugar, but this margin seems too small to justify 

 a step which would hazard any considerable amount of capital. Vari- 

 eties with 10 per cent and more of sugar were grown this year in Dela- 

 w^are and in New Jersey, aud with 3,500 tons of such cane a profitable 

 business would be almost certain." 



"All the seed used was guaranteed to have been taken from cane in 

 some cases testing as high as 15 per cent of sugar," The results of 

 the tests reported in this bulletin, however, range from 8 to 11 per cent 

 of sugar, the low percentage being possibly due to the wetness of the 

 season and other unfavorable conditions. 



SPRAYIXa WITH SULPHIDE OF POTASSIUM FOR THE SCAB OF THE 



PEAR, F, D, Chester, M. S. (pp. 11-14). — A report on an experiment 

 in one of the largest pear orchards of the State, located near Newark, 

 which for a long time has been badly infested with scab [Fusiclarlium 

 pyrinum, Fuckel), In 1889 the season was specially favorable for the 

 development of this disease, which affected 90 per cent of the fruit on 

 seven unsprayed trees examined. For this experiment, fourteen trees 

 of the Bartlett, Dutchess, and Lawrence varieties were selected. Seven 

 trees were sprayed five times, between June 11 and August 2, with 

 sulphide of potassium (one half ounce to 1 gallon of water), and the 

 results compared with those obtained from the other seven, which were 

 left unsprayed. The details given show that the different varieties were 

 differently affected by the disease and by the treatment. In general, 

 however, there were twenty-six more marketable pears out of every 

 hundred from the sprayed than from the unsprayed trees. "The total 

 cost per tree for the season's spraying was 5 cents, resulting in an 

 average increase of twenty marketable pears per tree." 



London pi^rple for 'Jhe codling moth, M, H. Beck with (pp. 

 15, 16). — Notes on an experiment in spraying five i3aldwin and two 

 Smith's Cider apple-trees in an orchard near Hare's Corners, New 



