HOUSE-FLY INVESTIGATIONS. 477 



Results. 



All the plants grew to maturity and bore normal crops, with 

 the exception of the Westoran-treated one, which died. 



2. Melons planted in soil over one cubic foot of treated soil 

 and manure and grown in a Frencli frame. The treatments 

 were :- — 



Neutral Blast-furnace oil. 

 Blast-furuace Creosote. 

 Green Tar oil. 



All g;vve normal results. 



3. Melons planted in soil over a hot-bed of manure treated 

 with "VVestoran in the strength of 2 ozs. diluted to one quart 

 Avith water per 10 cubic feet. The plants were grown on the 

 French system, and tlie results were normal. 



4. Cucumbers were planted in soil over a hot-bed of manure 

 treated with Miscible Pyridene 10 7o "t^ the strength of 2 ozs. 

 diluted to one quart per 10 cubic feet. They wei'e grown on the 

 French system with normal results. 



N.B. — In the case of 3 and 4 the manure used was treated a fortnight 

 previous to planting. In all the other experiments the manure was 

 used immediately after treatment, so that nothing was lost. In 

 actual practice a certain amount would be lost before use. 



III. Pots. 



1. At Wisley, white mustard Avas sown in 7 -inch pots on loam 

 and treated manure in equal parts. They were kept in a cool 

 frame and shaded. 



The following chemicals were used in the proportion of 1 part 

 diluted to 3 with water. The experiments formed three series ; — 



1. Treated with 30 c.c. of the mixture. 



2. ,, ,, loO ,, ,, 



3. ,, ,, 300 ,, ,, 



Results. 



Miscible oil, Heavy Rapid germination. Good crop. 



„ „ Light „ J, „ „ 



Miscible PyiiflBne, Series 1 and 2 ... „ „ ,, ,, 



,, „ „ 3 Uneven „ Poor „ 



Miscible Fusel oil, Series 1 ., „ „ „ 



„ ,, „ „ 2 and 3 ... Even „ Good „, 



Westoran, Series 1 „ „ „ „ 



„ ,, 2 and 3 Poor ,, Poor „ 



Kerosene. I 



Higher Pyridene bases. | 



Cresol. y Good „ Good „ 



Heavy Tar oil and Cresol. j 

 Neutral Bla^t-furnacc oil. ^ 



