90 NOTES AND ILLUSTRATIONS. 



That Philadelphia, being the city nearest the centre of the continent colonies, com- 

 municating with all of them northward and southward by post, and with all tiie islands 

 by sea, and having the advantage of a good growing library, be the centre of the society. 



That at Philadelphia there be always at least seven members ; vis. a physician, a 

 botanist, a mathematician, a chemist, a mechanician, a geographer, and a general natural 

 philosopher, beside a president, treasurer, and secretary. 



That these members meet once a month, or oftener, at their own expense, to commu- 

 nicate to each other their observations, experiments, &c. to receive, read, and consider 

 such letters, communications, or queries, as shall be sent from distant members ; to direct 

 the dispersing of copies of such communications as are valuable,, to other distant mem- 

 bers, in order to procure their sentiments thereupon, &c. 



That the subjects of the correspondence be, all new-discovered plants, herbs, trees, 

 roots, &c. their virtues, uses, &c. methods of propagating them, and making such as are 

 useful, but particular to some plantations, more general. Improvements of vegetable 

 juices, as ciders, wines, &c. New methods of curing or preventing diseases. All new- 

 discovered fossils in different countries, as mines, minerals, quarries, &c. New and useful 

 improvements in any branch of mathematics. New discoveries in chemistry, such as 

 improvements in distillation, brewing, assaying of ores, &c. New mechanical inventions 

 for saving labour ; as mills, carriages, &c. and for raising and conveying of water, drain- 

 ing of meadows, &c. All new arts, trades, manufactures, &c. that may be proposed or 

 thought of. Surveys, maps, and charts of particular parts of the sea-coasts, or inland 

 countries; course and junction of rivers and great roads, situation of lakes and moun- 

 tains, nature of the soil and productions, &c. New methods of improving the breed of 

 useful animals ; introducing other sorts from foreign countries. New improvements in 

 planting, gardening, clearing land, &c. And all philosophical experiments that let light 

 into the nature of things, tend to increase the power of man over matter, and multiply 

 the conveniences or pleasures of life. 



That a correspondence, already begun by some intended members, shall be kept up by 

 this society with the Royal Society of London, and with the Dublin Society. 



That every member shall have abstracts sent him quarterly, of every thing valuable 

 communicated to the society's secretary at Philadelphia, free of all charge except the 

 yearly payment hereafter mentioned. 



That by permission of the postmaster-general, such communications pass between the 

 secretary of the society and the members, postage free. 



That for the defraying the expense of such experiments as the society shall judge 

 proper to cause to be made, and other contingent charges for the common good, every 



