will give to this undertaking all tlıe avantages of a ſte- it is hoped it will be found an eafy task; to complete 
reotype edition. a 5 the whole work about 5000 numbers, and 8 or 10 years 
In order that every clals of focieiy may afford to ae- are required, but the moſt ufeful and intereſting lets 
quire this uleful work, the whole work, lets and fingle will be completed in two or three years. Being a grad- 
numbers, will be ſold at the cheapelt pollible rate. The ual acqwilition the expenſes will not be heavy, and when 
price to [ubleribers for the whole work, or any fet or compared with ſome other works, it will be found a ve- 
lets, of 100 numbers and upwards, will only be 5 cents for ry ü light one; for example, Willon’s Ornitholögy coſts 
each number, containing one plate and feveral pages of Sh. 100, while the ornithological ſet of this work will 
defcription and elugidaliqn. Should any Iubferiber want only colt about Sh. 20, or Sh. 40 if coloured. Thee trees 
his plates neat y coloured, he mult then pay donble price of North America of Michaux, jun, fell at about Sh. 50, 
or 10 cents for every number. This of courfe will be while the let of the Trees in this work will only colt 
quite a matter of option, as none will be coloured, unlefs- abont Sh. 8, S. or 10 if coloured! Er 
asked for, Eyery 100 numbers will form a Centuria or The lift of Plants and Animals, gradually published, 
Volume, which price will be only five dollars, or ten if will be inſerted every three months, in the Annals of 
coloured. Single numbers, or [mall lets, under 100 Nature, aud publisned yearly by catalogues. Whenever 
numbers, will however fell for one fixteenth of a dollar a let will be completed, a title page, w ih an index, will 
each, and if coloured, one eighth ofa dollar, Every plate be given gratis to the lubſeribers of [uch lets; and be- 
by itfe!f, without letler prefs, will fell 3 cents each, ſides, (everal general Synopfis of Genera and Species 
andg cents if coloured. This will be likewile the fell- will be printed leparately, to be united to every let of 
ing price to non-fubfcribers, to whom therefore every clalles, Floras or Faunas. N 1 
Centuria or volume will coft Sh. 6 25, or 12 50, if c- It will be proper to conclude, by the enumeration of 
loured. The numbers will be delivered monthly, un- nearly all the lets of works with their numbers, which 
bound, as it will be left at the option of fubleribers, or may be formed from this work, in order that gentlemen 
purchalers, to bind the numbers, according to their and ladies, willing to patroniſe the undertaking, may 
own fancy, talte, wants, [vftem, method or knowledge: have the choice of the lets, they will labferibe for, and 
or in any peculiar claſs, Flora or Fauna, The price mult a knowledge of the probable total expenſe of each. N; 
be paid on delivery. 1 a . 
Subferiptions will be received by the author and edi- . eneral Sets. 1 
tor, C. S. Rafines que, all his friends in the United 1. General Flora, or Botany of North America; about 
States and Europe, and by the principal bookfellers and 4000 fpecies, and 300 numbers. 
poſtmaſters in the United States, as well as the molt 2. General Fauna, or Zoology of North America; 
eminent bookfellers in Europe, to whom a commillfion about 4000 [pecies and 2000 numbers. 
of ten per cent. will be granted, and who may freely 
correlpond with the author on the ſubject; but let ii be ä II. Clalfical Sets. 
underltood that all returns, communications. and letters 5. Natural Claſſes of Plants, 10 Numbers. 
on the [ubject, from the United States, muſt, as much a.-Natural Ölalles of An mals, 10 Numbers. 
as polfible, be directed to the author in Philadelphia, by 4. Linnean Artificial Clalfes of Plants, 24 Numbers. 
ftages, private communications, or poft paid. O. Juſſieu's Clalles of Plants, 15 Numbers. 
To facilitate the acquifition of this valuable work, and 7. Maſtodology of the United States, or Natural his- 
to endeavour rendering it a complete vehicle of general tory of the Mammiferous Animals; over one hundred 
and local knowledge, the author has taken the refolu- Species. ZEN \ 
tion to receive as part of ſubſcription price, or in de- 8. Ornithology of the United States, or Natural Hi- 
duction therefrom, the following contributions, from ſtory of the Birds: over three hundred fpecies. 
fuch fubferibers as will be able to afford them, viz. g. Erpetology of the United States, or Natural Hiſtory 
1. Dried Specimens of new or very rare plauts. 2. Well of the Reptiles; over one hundred and twenty [pecies. 
preferved [pecimens of new or very rare Quadrupeds, 10. Ichthyology of the United States, or Natural Hi- 
Birds, Reptiles, Fishes, Infects, Shells, etc, 5. Good fiory of the Fishes; over two hundred and fifty Ipecies, 
drawings or coloured pictures of [uch Plants or Ani- 11. Plaxology of the United States, or Natural Hilio- 
mals above mentioned. 4. Local Catalogues of Animals xy of the Crultaceous; over one hundred [pecies, in about 
and Plants found in peculiar diltriels or ſtates. 5. Ac- fixiy numbers. 
counts of Local, Vulgar, or Indian names, given to 12. Entomology of the United States, or natural Hi- 
plants or animals in North Americ, and not vel publish- ſtory of the Infecis; over three ihonland Ipecies, in about 
ed. 6. Accounts of fuch properties, diſorders, reme. one thoufand numbers. 
dies, eunemies, food, peculiar qualities, etc. of Plants 15. Helmiology of the United States, or Natural Hi- 
and Animals, as have not yel been noticed by European ſtory of the Worms; over one hundred Ipecies. 
nor American Writers. 7. Scarce, new or valuable 14. Apalogy of the United States, or Natural Hiftory 
Books, Pamphlets, Publications, Papers, Manufcripts, of the Mollusks (including sheils); over one hundred 
etc. relating to the Natural Hiftory of North America, and fifty Ipecies. 
and not in the pollellion of the author. A fair valua- 15. Polypology of the United States, or Natural Hi- 
tion will be given to fuch contributions, and a dilcount ſtory of the Polyps; over one hundred Ipecies. 
allowed accordinglv; or if favoured by a non-[ubferi- 10. Poroftology of the United States, or National Hi- 
ber, he will be entitled to a certain number of plates fiory of the Poroltomes; over two hundred ſpecies, in 
ratis. When forwarded from a diltance, and particul- about fifty numbers, 
arly when bulky, it is requelted they should be [ent by 1. Eltrology of the United States, or Natural Hiſto- 
private conveyances, Editors of magazınes, reviews, ry of the Eltrogyne Plauts; over eight hundred ſpecies. 
eriodical papers and news papers who will give an in- 18. Meſology of the United States or Natural Hiſto- 
Eertion to Ihe whole of both thefe Proſpectus, or an ex- ry of the Melogyne Plants; over three hundred fpecies. 
tract thereof, will likewiſe be enlitled io a proportionate 19. Endology of the United States or Natural Hiltory 
zhare of plates and numbers. of the Endogyne Plants: over four hundred [pecies. 
Nothwilhſtanding the magnitude of the undertaking, 20. Symphology of ihe United States or Natural Hif- 
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