244 Scientific Intelligence. 
instance, the fruit from these terminal neh was as unlike the 
ramet moke-house” as it was possible The fruit stems 
ere very long and slender, and the fruit Sakvened--whes omol- 
Salute term oblate. It might further be noted that this change 
was not a change by gradual modification through seminal agency ; 
but.a leap, wo from a tree that had sie bi produce flowers in 
the normal w. There was apparently no more reason why the 
law, reatavor it may be, that operated on this one tree might not 
under some circumstances operate on all the trees in the orchard, 
or on other wild trees in native places of growth, or on the indi- 
viduals of a whole district, as well as on a single tree. It was 
such osdeeero8 as these ehibshn made the doctrine of evolution in 
some form an absolute certainty.—Proc. Acad. Nat. Sei. Philad., 
pies p- 192, 
emarks on the Yellow Ant.—Professor Leipy remarked 
pe recently while seeking certain animals beneath stones in the 
s near Philadelphia, he had had the opportunity of —— 
the Yellow Ant, Formica flava, in possession of large numbers 
other insects, This fact, in itself common enough, in one vested 
was new and of special interest to him, and may be so to others. 
midst of one of the former herds. In a larger colony of the Yel- 
low Ants, there was a herd of Aphides which occupied the under 
part of one margin of the stone and was almost ten inches long by 
three-fourths of an inch in breadth. The same colony also pos- 
almost a square ee of Be Los "In bo th colonies Pe Aphis and 
of the sto 
not attached to roots. They ap lets to be Srohally attended 
by the ants, which surrounded A at e larva alluded to was 
almost six millimeters long, was covered on the back with a thick 
white cotton-like secretion. It was also arely attended by 
antenne. "The Aphides and Cocci were all in pre condition, but 
pti 
grass roots partially extending into the earth beneath the stones, 
to which it is probable they were at uy *uaicgos by their 
vga —Proe, Aca d. Nat. Sei., 1877, 
2 P 
of coloring of the group to which the species belongs; while it is 
