Numb. 472. 
PHILOSOPHICAL 
TRANSACTIONS. 
for the Months of January , February , March., 
and April, 1744. 
The CONTENTS. 
I. An eafy Method of procuring the Volatile Acid of Sulphur: By 
Ephraim Rinhold Seehl ; addrejfed in a Letter to the Prefident 
and Fellows of the Royal Society. Page i* 
II. An Obfervation of a Spina bifida, commonly fo termed : By Mr. 
George Aylett, Surgeon at Windfor. p. io. 
III. An Improvement on the Brattice of Tapping; vihereby that 
Operation , injlead of a Relief for Symptoms, becomes an abfblute 
Cure for an Afcites; exemplified in the Cafe of] ane Roman; 
and recommended to the Confider ation of the Royal Society ; by 
Chriftopher Warrick, of Truro, Surgeon. p. 12. 
IV. A Method of conveying Liquors into the Abdomen during the 
Operation of Tapping ; propojed by the Reverend Stephen Hales, 
D. D. and F. R. S. on Occafion of the precedmg Paper-, commu- 
nicated in a Letter to Cromwell Mortimer, M. D.Sec. R. S. p. 20. 
V. An Extratt 0/ John Fothergi 1 , M. D. Licentiate of the Royal 
College of Phyficians, London, his EJfay upon the Origin of 
Amber. p. 21. 
VI. Remarks on Stones of a regular Figure, found near Bagneres in 
Gafcony : With other Obfervations communicated by Monfieur 
Secondar de Montefquieu, of the Academy of Sciences of Bor- 
deaux, in a Letter to Martin Folkes, Efq; Pref. R. S. p. 2 6. 
VII. A Letter from Mr. Henry Baker, F. R. S. to the Prefident, 
concerning a new-difcovered Sea-Infedt, vchich he calls the Eye- 
fucker. p. 35. 
VIII. Some Obfervations on the Hardnejs of Shells, and on the Food 
of the Soal-Fifh ; by Mr. Peter Collinfon, F. R. S. p 37. 
IX. Hiftoria brevis Morbi, quo deceffit Revercndijf. Pater Jofephus 
Bolognini, Abbas Bonifacii fiy Alexii, de Urbe atque Congreg. 
Hieronym. Procter, generalise excerpta per C. M. R. S. Seer, ex 
Epifola ab Domino Johanne Francifco de Camtllis, M. D. feripta 
ad Virum clariffimum Didacum de Revillas, Abbatem Hieronym. 
in 
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