* cooling régimen was purfued the first twenty-four hours on the morning of the fecond day, his fkin was filled with an cruption, accompanied with confiderable fever and much starting: he was ftill kept cool, a fmali quantity of blood was taken away, and a dofe of oil administered, which operated kindly. In the evening he was feized with convulfions of the most violent kind : the eruption which had taken place, was now more general, with every marked appearance of fmall-pox: he died on the morning of the third.

This child had likewife been inoculated by the fame phyfician, and declared by him to have had the difeafe.

The fecond day after this child was taken ill, the eldest daughter, a young lady of fourteen, who had been inoculated when an infant, by Dr. Pfeiffer (the elder), and declared by him to have had the difeafe fufficiently, was attacked in the fame manner; about the ufual period, an eruption of small-pox took place over the whole body, which went regularly through its different ftages; and after a very painful and diftreffingly loathfome illness, the recovered.

Could these cafes for the fmallest moment excite a doubt, whether the artificial introduction of the variolous infection into the human body, is a certain preventive of any fubfequent influence of that matter on the fame perfon, either naturally or by inoculation?

Should we not more reasonably and juftly attribute them to fome mistake in the conduct of the inoculation, either refpecting the matter, or the appearance of the difeafe produced by it?

I not only mention thefe cafes with a view of fhewing, that mistakes have been made, not alone in vaccination, but in the inoculation for small-pox, and by phyficians on whom every reliance could be placed: but they may also be useful in giving us another proof, if proofs be ftill wanting, of the powerful effects of the vaccine difeafe after it has completely gone through its different ftages, in preventing the fubfequent influence of the variolous infection.

The youngest child, now more than two years old, was vaccinated by Dr. Pfeiffer, jun. when quite young, and had

the disease completely. During the time its fifters were com fined with the small-pox, it was kept almost constantly in the room, and very frequently flept in the bed with one or other of them. This child never had the leaft indifpofition.*

On the Purification of Pomatum by Charcoal. Communicated to the Editor by MR. JOHN PHILLIPS.

I

TOOK five pounds of hard pomatum which was very rancid, and put it into an iron pot with a little rain water : as foon as the whole was melted, I took about two ounces of fmall pieces of charcoalt and threw it into the melted mafs, frequently firring it, and let it boil for the space of fifteen or twenty minutes; I then filtered it through a piece of flannel, laid in a common hair fieve; then kept beating it till cold with a wooden fpatula, adding by degrees a fmall quantity of rain water. When cold, I poured it into a veffel containing rain water, and washed it in three different waters, in order to whiten it. I then put it into a marble mortar, and rubbed it well with a wooden pestle until it was entirely free from any watery particles. I then committed it again to the pot, and melted it over a flow fire, with the addition of a little water fufficient to prevent an empyreuma, and let it boil for ten or fifteen minutes. I let it remain in the pot all night; in the morning I took it out in a hard cake, and found all the smaller particles of the charcoal incrusted at the bottom, which I fcraped off, and put it by for ufe thoroughly purified from its rancidity.

May 30, 1798.

• Dr. Pallas in his travels through Southern Ruffia, Vol. 1, p. 186, affures us that his daughter was seized with the small pox, for the fecond time. Editor.

+I was not accurate in the charcoal, as I did not weigh it, but was guided by letting a little fall off the end of the spatula into water, by which means I was able to determine whether the charcoal had absorbed the whole.

MEDICAL AND PHILOSOPHICAL

REGISTER.

A1

FOREIGN AND DOMESTIC.

Ta ftated meeting of the American Philofophical Society held at their hall on Friday, January 4th, 1805, the following perfons were duly elected officers of the Society. Prefident-Thomas Jefferson.

Vice-Presidents-C. Wistar, R. Patterson, B. S. Barton.' Secretaries-J. R. Coxe, A. Seybert, T. C. James, T. T.

Hewfon.

Counsellors for 3 years-J. Woodhouse, S. Duffield, W. Shippen, Z. Collins.

Curators-C. W. Peale, J. Church, R. Hare, jan.
Treafurer--J. Vaughan.

At a stated meeting of the A. P. S. held January 18th, 1805, the following perfons were elected members of the fociety. John Maclean, M. D. Prof. Nat. Phil. and Chem. in the college of New-Jersey.

Edward Miller, M. D. of New-York.

Rev. John Prince, of Salem, Massachusetts.
Capt. W. Jones, of Philadelphia.

Charles Smith, of Lancaster, Pennsylvania.

William Hawes, M. D. of London.

Samuel Moore, of Philadelphia.

Francis A. Vanderkemp, of Oneida county, New-York.
Benj. Silleman, Prof. Chem. and Nat. Hist. in Yale Col. Con.
John Vaughan was chofen Librarian.

THE thanks of the fociety are prefented to the following perfons, for the Communications and Donations affixed to their refpective names.

Philadelphia, Jan. 18, 1805.

JOHN VAUGHAN, Librarian.

COMMUNICATIONS.

On the occultation of Aldebaran in the disk of the Moon, 21ft October, 1793. By J. J. de Ferrer.

Facts and Obfervations on the Beaver of N. America, collected by Mr. Heckewelder, communicated by Dr. Barton.

On many of the pernicious Infects of the United States; intended for the Magellanic premium.

A fet of Tables, with their application to an useful Improvement in Navigation and Surveying, figned Cc b R. for the Magellanic premium.

An Account of the Great Cold at Northampton, G. B. Jan. 7th, 1776. By Dr. A. Fothergill.

DONATIONS.

A model of a Life-Buoy. By T. Hamilton.

A model of his temporary Rudder. By capt. Mugford of Salem, Maffachusetts.

A number of Shells and Corals from Sumatra. By capt, A. Newell, of Boston.

Afiatic Researches, 7 Vols. royal 4to. Calcutta. By the Society.

Tranfactions of the Royal Irish Academy. 2 to 9, 4to. By the Society.

Letters and papers of the Bath and Weft of England fociety. 9 Vols. 8vo. By the Society.

Tranfactions of the Batavian Society of Haerlem. 30 Vols. old Series-1 Vol. new. By the Society.

Catalogue of the Library of the London Medical Society. By the Society.

Sixteen numbers of the Journals of the Royal Institution of G. Britain: alfo an account of the Library, and Mineralogical Eftablishment. By the Society.

Supplement to the Encyclopedia. 3 Vols. 4to. By Thomas Dobfon.

Voyage dans L'Egypte. Par Vivant Denon. 2 Vols. imp. fol. By Wm. M'Clure.

The Works of James Wilson, Esq. 3 Vols. 8vo. By Bird Wilfon, Efq.

Traitè de la Fiévre jaune de l'Amerique. 8vo. Par L. Valentin, M. D. By the Author.

Memorial of the French in reply to the English, respecting the war of 1755. By Dr. Meafe.

Alcoran of Mahomet from the French of Du Ryer. 4to. Affertion of the 7 Sacraments by Henry 8th, against Luther, 8vo. By T. Stretch, Efq.

Thefaurus Medicus, G. Smellie. 2 Vols. 8vo.-Collection of Pennsylvania Almanacs: by Franklin, &c. By Dr. James.

Dr. Hawes' Annual Report to the London Humane Society. -Giles' Sermon on premature Interment.-Cautions concerning the Poisons of Lead and Copper. By Dr. A. Fother gill.

Narrative of the Sufferings of capt. Woodward among the Malays. 8vo. By Wm. Vaughan, of London.

English Translation of the Geometria of Peter Ramus. By T. Hamilton.

Account of the re-eftablishment, &c. of the University of Wilna in Ruffia. By A. Strojnowsky, Rector of the U.

Furling's American Coast Pilot.-Geography of J. Payne. 4 Vols. 8vo.-Roman Converfations, by J. Wilcocks. 2 Vols. Recherches phyfiques fur le feu, par Marat. By J. Vaughan..

Depofited with the Society, by Wm. Loughton Smith, Esq. a very valuable Collection of Engravings, and Books relative thereto; fent to this country from Italy, by his brother jofeph Smith, Efq. in profecution of a plan to promote a taste for the Arts in the U. States.