WU dat 
FOUNDED IN 1786, BY 
JOHN HYACINTH DE MAGELLAN, 
OF LONDON. 
1900. 
Tue AMERICAN PuivosopHicaL Society, 
Held at Philadelphia, for Promoting Useful Knowledge 
ANNOUNCES THAT IN 
DECEMBER, 1900, 
IT WILL AWARD ITS 
MAGELLANIC GOLD MEDAL 
to the author of the best discovery, or most useful invention, relating to Navi- 
gation, Astronomy, or Natural Philosophy (mere natural history 
only excepted) under the following conditions: 
1. The candidate shall, on or before November 1, 1900 deliver, free 
of postage or other charges, his discovery, invention or improvement, 
addressed to the President of the American Philosophical Society, No. 
104 South Fifth Street, Philadelphia, U. S. A., and shall distinguish his 
performance by some motto, device, or other signature. With his dis- 
covery, invention, or improvement, he shall also send a sealed letter 
containing the same motto, device, or signature, and subscribed with the 
real name and place of residence of the author. 
2. Persons of any nation, sect or denomination whatever, shall be 
admitted as candidates for this premium. 
3. No discovery, invention or improvement shall be entitled to this 
premium, which hath been already published, or for which the author 
hath been publicly rewarded elsewhere. 
4. The candidate shall communicate his discovery, invention or im- 
provement, either in the English, French, German, or Latin language. 
5. A full account of the crowned subject shall be published by the 
Society, as soon as may be after the adjudication, either in a separate 
publication, or in the next succeeding volume of their Transactions, or 
in both. 
6. The premium shall consist of an oval plate of solid standard gold 
of the value of ten guineas, suitably inscribed, with the seal of the Society 
annexed to the medal by a ribbon. 
All correspondence in relation hereto should be addressed 
TO THE SECRETARIES OF THE 
AMERICAN PHILOSOPHICAL SOCIETY, 
No. 104 SOUTH FIFTH STREET, 
PHILADELPHIA, U. S. A. 
