Cholera failed to strike a single one of the 4,000 women employed in
the national tobacco factory at Valencia, Spain, though the disease
raged violently in that city, and the _Medical World_ recalls that
tobacco workers were also noticed to enjoy exemption from attack
during an epidemic at Amsterdam.

* * * * *




THE CABBAGE BUTTERFLY.


A patch of eggs and the minute caterpillars or larvæ nearly emerged
from them are seen on the leaf. These tiny eggs are at first quite
white or pale yellow, and form an object for the microscope of
remarkable beauty, which is worthy of the examination of all who take
an interest in the garden and its insect life. An egg magnified is
drawn at the bottom left-hand corner of the woodcut. When the eggs are
near the hatching point they darken in color, and a magnifying glass
reveals through the delicate transparent shell a sight which fills the
observer with amazement; the embryo caterpillar is seen in gradual
course of formation, and if patience and warmth have permitted it, the
observer will witness slight movements within the life-case, and
presently the shell will break and a black head with moving jaws will
be thrust out; the little caterpillar unfolds and slowly crawls away
from the egg-shell, and inserts its jaws into the green leaf. It is
curious to witness how judiciously the little creatures avoid crowding