SCALE-INSECTS, BARK-LICE, MEALY-BUGS. PAS 
200 cc.; buhach, 50 grams. It was allowed to stand, with oc- 
casional shaking, for seven or eight days, then filtered and diluted 
about one-half with water. 
All these remedies have to be repeated at frequent intervals, 
and are consequently troublesome. No plant should be per- 
mitted to go into the greenhouse or conservatory before it is 
most thoroughly inspected. In this case an ounce of prevention 
is worth many pounds of cure. 
Fic. 171—Pseundococcus aceris Geoff.: a, adult females on leaf; b, young females: 
and males on bark—natural size. After Howard, Div. of Entomology, Dep. 
of Agriculture. 
Pseudococcus aceris Geoff. (The Maple Pseudococcus). 
This insect occurs in a number of places in the United’ 
States, and as it seems to be on the increase, it is wise to look 
