616 NEW JEESEY AGEICULTURAL COLLEGE 



All the preparations above named contain about 60 per cent, of 

 actual mineral oil. All are to be diluted v.dth twenty parts of water 

 for winter work, and all may be expected to give a similar result. As 

 to "Sure-Kill," sold by Siebreclit & Son, 425 Fifth avenue, New York, 

 it may be equally reliable, but there has not been opportunity to test it. 

 I have no knowledge of how this was developed. 



The experiments made with the "Target Brand Emulsion" are not 

 recorded, because the material now on the market under that name is 

 an altogether different preparation, better, I think, from the material 

 applied by me. It would be obviously unfair to credit the new ma- 

 terial with the successes of the old or to charge it with the failures, 

 while a record of experiments with a material no longer on the market 

 is futile. 



Textil Oil. 



When I first began to urge the importance of obtaining a soluble 

 petroleum upon those chemists who had manifested an interest in 

 the subject, I was informed that there was already such a combination 

 in existence and in use in the trades. It was something known as 

 "Textil Oil," used in softening the fibers of certain fabrics and said 

 to be very poisonous. 



I succeeded in obtaining a very small sample of this maierial, 

 reported to be made up of 70 per cent, mineral oil (petroleum in some 

 form), 20 per cent, animal oil (character not given), 10 per cent, 

 alkali and water. 



About the most scaly tree I had on the place, and the one I cared 

 least about, was No. 1, Mariana plum, and I determined to sacrifice 

 that to the oil should it prove as poisonous as it was said to be. From 

 the records of the Experiment Orchard, in the Report for 1904, page 

 606, it appears that on October 15th of that year, after a series of 

 unsuccessful applications, the tree was in such condition that I sprayed 

 it with "Kill-0- Scale," one part in twenty of water. November 2d, 

 "there were no larvae and no recent sets, and wherever examinations 

 were made the insects seemed to be dead. A^liere the scale scurf is 

 thickest it now comes off in soaked flakes, and this last application 

 has been, without doubt, the most effective application of the year. 

 There is little doubt, however, that there are yet enough living scales, 

 well out on the twigs, to provide for a brood in 1905. unless ^^•inter 

 applications are made." 



