1899.] PUBLIC DOCUMENT — No. 33. 5 



analyses of these materials made, 292 of fodder and 420 of 

 dairy products. In an investigation of Cleveland flax meal 

 v. old-process linseed meal for feeding early lambs, it was 

 found that no injurious results followed from the use of flax 

 meal, and that there was the same average daily growth of 

 the lambs on either ration ; in an experiment of corn meal 

 v. hominy meal and corn meal v. cerealine feed for growing 

 pigs, it was found that the corn meal was five to ten per 

 cent, more valuable than cerealine feed used in connection 

 with skim-milk, while hominy meal was quite as valuable 

 as corn meal in connection with skim-milk. 



In the entomological division, besides the special work 

 in connection with the gypsy moth, attention has been paid 

 to combining the arsenate of lead and the Bordeaux mix- 

 ture, with favorable results. The life histories and habits 

 of two pernicious insects have been worked out, — the grass 

 thrips, particularly destructive in this State, and the small 

 clover-leaf beetle (Pliytonomm nigrirostris) . The perni- 

 cious scale insects (Chionasjris) have also been carefully 

 studied, and the results will soon be published. 



The horticultural division has continued its work of test- 

 ing varieties of fruits, domestic and foreign, suitable for 

 this State, and its investigation of hydrocyanic acid as an 

 insecticide. 



The division of fertilizers has made five hundred and 

 fifty-two analyses ; has conducted experiments on the use 

 of concentrated chemical manures to supply plant food in 

 greenhouses, combinations of high-grade fertilizers for 

 garden, greenhouse and pot cultivation; and has made 

 observations with dried blood and two kinds of leather 

 refuse as a source of nitrogen for growing rye in presence 

 of acid and alkaline phosphates. 



The agricultural division, in addition to its soil tests with 

 corn, onions, oats, etc., has undertaken the testing of seeds 

 of the same variety of potatoes raised in different localities, 

 finding a variation of fifty per cent, in Early Rose and 

 Beauty of Hebron. In experiments with poultry the fol- 

 lowing results were obtained with reference to egg produc- 

 tion : (a) that condition powders had no effect; (6) that 



