C <^47 ) Numy, 127* 
PHILOSOPHICAL 
TRANSACTIONS. 
Jf^lyiS. 16 76. 
™^he CONTE^TFs. — — 
M Extract of a Letter written from Dublin to the Publijherj con- 
taining divers Particulars of a I hilofofhical nature, viz.a Nma- 
five of A flrmge effeii of thunder upna, Magnet ick Sea- card; feme 
Remarks concerning the gradual Alteration of the lemperature of 
the Air in divers CountrefS'^ a contrivance of an uncommon Hy' 
gtofcopG;The Mufkj jcent of certain farts of the Animal called 
Musk-quafli,<^^. ^!Mr. Leewenhoccks Letter to the Fublijb' 
er , about the texture oftrees^ and feme remarkable difcovery in 
Wine. Monfe Hevelius obfervation of a Solar EcUpfG of A. 
1675. Mr. FJamfteads, M?^* Townlyes> Mr. Haltons, Signor 
Caflini'i and Monfieur HcveliusV, Obfervaticns of the Late Eclipje 
of the Sun, An extra^ of a letter of Dr. Matthhs Mangold^/ 
Bafel, concerning a MaihciD^ncO'tiiftoricalTdibk ^ deftgnedin 
that Univerfity s together with a Defeription of the fame. An Ac 
count of four Books : !♦ Experiments , Notes d^c. about the ME-* 
CHANICAL Origin of divers particular QUALITIES ; among 
rvhichisinferteda Difcoutfeofthe imperfeSiion of the CHYMl" 
STS DoSrineof ^alities ; together vaitb feme Reflexions upon the 
Hypothefis of ALCALl and ACIDUM: By the Honorable Koh, 
Boyle II. TH. Bartholinus PEKfiGR/ilT^r/OiVJB 
Medica x^c. III. Ceorg Hier. Vellchij Centuri£ du£ Obferva" 
tionu?n Phyfico-Medicarum. IV. Job. NicolausPechliniusM* 
D. deAERlSet JLlMENtl DEFECTU, et VllA SUB 
J^UIS. 
Jn extract of a Letter drc from Di\h\m May the loth^ 1676. 
SIR, 
FIndingamongft my Adver [arid Come ohravmons^ihu I thought 
might not be unacceptable to you j nor impertinent to your 
defign of making colleftions for the Hiftory of Nature^ I have here 
fentyoua few, of fuch as my other occafions would at prefent 
afford me leifure to recolleft. This enfuing Narrative , concer- 
ning the flrangc effeft of Thunder upon a Magnetick Sea-card 5 I 
had from one Mr. Hamrd that was Matter of fevcral Hips , and a, 
man of good credit. Pppp He 
