248 
ous fruit trees are scattered about; on the west side it joins immediately 
the extensive vineyard of Dr. Hedges, which covers the slope of the 
ridge; finally, on the south side it is separated from the garden of Judge 
Reeves by two board fences and a narrow alley. 
The orchard itself is planted with choice dwarf fruit trees, mostly pear, 
the trees being rather crowded, so that in many instances the branches 
interlock. On the northern side there is an open patch originally 
planted with currant bushes, but these having mostly died in the course 
of time are now replaced by strawberries. There are also a couple 
of small beds of various garden flowers, including a few rose bushes. 
Along the fence at the south side there are finally several rows of rasp- 
berry plants. The soil beneath and between the fruit trees is generally 
bare excepting numerous purslane plants growing on the less shaded 
places. Finally, there is a solitary fine Sweet gum tree (Vyssa multi- 
flora) at the west side of the orchard. 
THE INFESTED PLANTS. 
The whole orchard, which was laid out eight years ago, may be said 
to be badly infested with Aspidiotus perniciosus, but by no means evenly 
so. To begin with the fruit trees, there were no scales whatever on the 
few quince trees and Japanese persimmon, though these stood in the 
immediate vicinity of other badly infested trees; there were avery few 
seattered scales on the young twigs of a few dwarf apples (Japanese) 
and plum trees (several varieties), a few more on peach trees. The 
pear trees form by far the greatest bulk of the orchard, and here a very 
striking difference between the varieties was noticeable at the first 
glance. The Lawrence pear trees, numerously represented in the 
orchard, were as a rule not at all infested, and only on a few trees iso- 
lated specimens were seen, usually on the fruit. In striking contrast 
to the Lawrence pear is the Duchesse d’Angouléme and derived varie- 
ties. Many trees of this variety are in all parts of the orchard, and 
every one of them is badly infested. The Bartlett pear and allied 
varieties are also uniformly infested, but decidedly less so than the 
Duchesse pears. | 
No trace of scales could be found on the Raspberry bushes, but most 
of the few remaining currant bushes were badly infested. Finally, 
scales were found on the few rosebushes in the orchard, but a single 
specimen of a rose with very rough and spiny surface (Rosa rugosa?) 
was perfectly free of them. <All other plants, cultivated or wild, grow- 
ing within the orchard, were absolutely free from the scales. 
; OTHER INFESTED PLACES. 
Not a single scale could be found on the grapevines of Dr. Hedges’ 
extended vineyard, although, as stated above, it immediately adjoins 
the infested pear orchard. Within this vineyard, and planted between 
