ANTIDOTES TO POISONING BY COPPER. 
435 
of the raw material which nature gives him, but, observing 
the laws upon which nature herself works, detecting the 
mechanical powers by which the universe is regulated, and 
the physical powers unceasingly at work in creation, he 
compels them, as slaves, to do his bidding. Man manufac- 
tures levers and wedges, he makes machines, which no other 
animal ever did. 
Man’s supremacy entirely depends upon his so nicely 
adjusting the powers of mind and body, that he can make 
them equally available to the ends he aims at. The mental 
powers are exerted to discover the constitution of the earth, 
the creations on its surface, and the physical forces by which 
all these are regulated. This is science. Without science 
there can be no advance. Truths become known to us only 
through the researches of science ; therefore the imperative 
necessity of so training the mind that it can search, and by 
seeking, find. Whatever may be the form of science, its 
ends are no more than this. 
Having discovered a truth, we seek to apply it, and every 
advance of any human industry is but an application of a 
known truth . — Art Journal. 
SECRETION OE MILK BY A COLT ELEVEN DAYS OLD. 
The fact of infants now and then presenting the pheno- 
mena of a secretion of milk from the mammae has been pretty 
often observed ; and M. Billard, in his work, e On Diseases 
of Children,’ mentions this strange glandular activity. We 
perceive that lately in Belgium, according to the ‘ Journal 
de Medecine Veterinaire,’ M. Dayot saw a colt, eleven days 
old, which could be milked like a cow ; but the flow of milk 
was stronger when the little animal drew milk from the 
mother : fluid of the same kind then flowed in abundance 
from the colt’s own teats, each time the sucking aspiration 
was made. 
ON ANTIDOTES TO POISONING BY COPPER. 
Dr. Schrader, of Gottingen, having undertaken an expe- 
rimental investigation into this subject, arrives at the follow- 
ing conclusions : — 
1. Hydrated magnesia is just as little of an antidote as the 
alkaline carbonates, the hydrated oxide of copper that is 
