oric
acid and boiling alcohol and ether. Black pigment is usually found in
black, brown, and dark red hair, but in the latter it is associated
with a brown pigment that is soluble in dilute sulphuric acid.

Experiments were made by Dr. Floyd to determine the position of the
pigment in the negro's skin. Many Southern physicians are under the
impression that a blister upon the black skin is white, or nearly so.
But this was disproved by experiment, and the microscope showed that
the granules were dispersed through the whole of the cuticle, though
less dense at the surface than in the deeper tissues. In fact Dr. Floyd
thinks that the pigment originates in the outer layer of true skin,
"its production being probably connected with the loss of vitality of
the cells, and that it accompanies those cells all the way to the
surface, where it is mechanically removed by desquamation." The
alteration of the red blood corpuscles to black pigment may be due to
feeble circulation in the superficial capillaries. The diseases of
negroes, and their extreme sensitiveness to low temperatures, sustain
this view.

* * * * *

The jurisdiction of London extends over 756 square miles; its area
embraces 78,000 acres. It contains 4,000,000 of inhabitants, increasing
at the rate of 75,000 a year, of various nationalities.

The rapidity of sewing machine work, even when not working beyond an
ordinary manufacturing speed, is seen in the manufacture of 110
three-bushel sacks per hour, containing 35,640 stitches, or close on
600 per minute.

The pine woods of Michigan are said to contain in standing trees--

In Eastern Michigan 13,500,000,000 feet.
In Western Michigan 11,500,000,000 "
In Upper Peninsular 19,500,000,000 "
--------------
Total 44,500,000,000

A manufacturer lately sued the city of Paris for about $15,000 on the
ground that the water supplied by the new works was so good that he
could not make gelatine, and his business was therefore ruined! The
suit was dismissed with costs.

A paste made of fifty-one parts of finely shaved stearine, melted in
seventy-two parts of previously warmed oil of turpentine, will restore
the polish to furniture. When cool rub on with a woollen rag, and when
dry rub thoroughly with a clean dry cloth.

This winter is said to have been the coldest known in Russia for