XXIV EXTRA MAGELLANIC-PREMIUM. 



2. Every communication which shall have been offered with a view to 

 the Magellanic-Premium, and to which the same shall not have been award- 

 ed, shall (except such as the Society shall not think at all worthy ol notice) 

 be again taken into consideration, with a view to the awarding o. the surplus 

 premium ; and if such communication shall, at such meeting, be thought 

 within the general view of the donation, and to be sufficiently valuable to 

 deserve a public reward, a surplus premium may be awarded to the author 

 thereof. 



3. The surplus premium shall consist of a gold medal, of the value of not 

 less than twenty dollars, nor more than forty-five dollars, engraved with 

 a similar device to that of the original premium, except that it shall contain 

 the words " Extra Magellanic-Premium," or at the option of the success- 

 ful candidate, the value of such medal in money, accompanied with a Di- 

 ploma on parchment, with the seal of the Society. 



4. All the rules and regulations concerning the application for the award- 

 ing of the original Magellanic-Premium, shall be adhered to in the case of 

 the surplus premium, in so far as they are not hereby modified or derogated 

 from ; unless, in very special cases, for the rewarding of some essentially 

 useful discovery or improvement, two thirds of the members of the Society 

 present at a meeting, appointed for the awarding of the surplus Magellanic- 

 Premium, shall, by their votes, taken by ballot or otherwise, direct. 



5. The Society shall propose and publish, as often as they think proper, 

 such a number of subjects as they think fit, to which they shall call the at- 

 tention of the candidates for the original and surplus Magellanic-Premiums, 

 and invite their communications thereon, informing them at the same time, 

 that although communications on such subjects will be acceptable to the So- 

 ciety, yet they shall not entitle their authors to a preference over more me- 

 ritorious communications on other subjects, equally within the strict or ge- 

 neral view (as the case may be) of the Magellanic donation. 



6. The surplus-premium will not be exclusively applied to actual inven- 

 tions or improvements, but will also be extended to such valuable commu- 

 nications, within the general view of the donation, as may lead to useful 

 discoveries, inventions or improvements. 



The Society have thought proper at present to propose the following 

 subjects : 



1. The best experimental essay on native American permanent dyes or 

 pigments, accompanied by specimens. 



2. The best means of navigating our rapid rivers against the stream. 



3. The best essay on the general natural history of the ranges of Ameri- 

 can mountains in the country east of the river Mississippi. 



4. The best essay on the natural history and chemical qualities of the hot 

 and warm springs of the United States, or of any one of them. 



