Auriga's wonderful star. Harper's Weekly _41_, 471 (May 8, 1897)

A Belt of sun-spots. Popular Science Monthly _24_, 180-86 (December

1883)

Can we always count upon the sun? Popular Science Monthly _39_,

658-64 (September 1891)

Celebrated American astronomers. Harper's Weekly _38_, 1143-46 (Dec.

1, 1894)