Song and mating, [133].
Sparrow, English, adapted to town, [66].
and hawks, [69].
and winter, [73].
eat varied food, [71].
eye-minded, [78].
feed young on insects, [72].
good qualities, [85].
has reached limit, [85].
in Philadelphia, [63].
introduction, [62].
lives near houses, [70].
nests early, [81].
nests often, [82].
once migratory, [80].
quarrels without animosity, [75].
sociable, [74].
spread of, [65].
stays over winter, [79].
successful, [83].
transported in cars, [67].
unafraid of man, [69].
wintering, [73].
Sparrow, House, [62].
Sphex wasp, [143].
Spider cocoons, [139].
Spider, young, [140].
Spontaneous generation, [159].
Stone lilies, [171].
Story of the horse, [220].
Struggle against enemies, [104].
for food, [91].
for shelter, [92].
for the individual, [90].
for the species, [91], [125].