1868 ARBORETUM AND FRUTICETUM. PART III. 
may have pushed above lin. in length. Cobbett recommends gathering the 
acorns before they are quite ripe, drying in the sun, and packing in dry sand ; 
but by this mode, we think, the vital principle would not be so well preserved 
as by packing them in Sphagnum. CA 
Insects. \n America, the white oak is infested with numerous insects, some 
of which are figured in Abbott and Smith’s Insects of Georgia. Phale‘na 
(? Pyge'ra) albitrons (t.80., 
and our fig. 1728.), the white- 
tip moth, is by no means a 
common kind. The cater- 
pillar, which is of a pinkish 
colour, striped with yellow, 
white, and black, has a fine 
polish, as if glazed or var- 
nished. The whole brood 
feeds together, especially 
when small. One observed 
by Abbott spun itself a thin 
white web,between the leaves 
of the oak, on October 28th, 
and came out on the 18th of 
February. The chrysalis is 
of a reddish brown, and the 
perfect insect ofa dull brown, 
tinged with yellow. Phalz‘na 
(Notodénta) Aurora (Add. 
and Smith,t.87., and our fig. 
1729.), the pink and yellow 
prominent moth, was taken 
by Abbott on the white oak. “ The caterpillar went into the ground, 
and enclosed itself in a thin case of dirt, on July 15th, appearing on the wing 
on August 7th. Sometimes this species buries itself in the autumn, and remains 
till spring, at which season the moth may now and then be observed sitting 
on the oak branches.” 
Statistics. In the environs of London, at Fulham Palace, a tree bearing this name, between 100 
and 120 years old, is 60 ft. high, but it appears to us to be nothing more than Q. pedunculata ; at 
York House, Twickenham, it is 50 ft. high; at Muswell Hill, 72 years old, it is 61 ft. high, the 
diameter of the trunk 6 ft. Gin., and of the head 70 ft. In France, in Brittany, at Barres, 8 years 
planted, it is 9ft. high. In Austria, at Vienna, in the park at Laxenburg, 10 years planted, it is 
20 ft. ih. In Bavaria, at Munich, in the English Garden, 10 years old, it is 7 ft. high. In 
bey . ey: at Monza, 24 years planted, it is 30 ft. high, the diameter of the trunk 8in., and 
the head 10 ft. 
Commercial Statistics. The name of the white oak does not occur in any 
of the London nursery catalogues of the present day, with the exception of 
that of Messrs. Loddiges; neither is it in the Bollwyller catalogue. In that 
