The CONTENTS. 
• V. Some material OhferVations upon dijfeEling an 
Ojlrichy 77iade lately by Mr. Ranby, Surgeon 
to his Majejlys Houjholdy and F. (?(. S. 
vr. A nem iQnd of Hydrometer made hy Mr. 
Clarke, and communicated to the Society by 
J.T. DefaguIierSj L. L. 2). F. (2^. S. 
VII. An Account of an Aurora Borealis attend^ 
ed with unufual AppearanceSy in a Letter from 
the Learned Mr. G. Cramer, Trof. Math. 
Genev. to James Jurin, M. D. and F. ^S. 
yill. An Accoujit of a Spiritus Vini i£therius, 
together with federal Experments tried therewith. 
!By Vr. Frobenius, F. ^ S. 
IX. An Account of the Hermaphrodite Lobfter 
prefented to the Royal Society on Thurfday 
May the ythy by Mr. Fiflier of Newgate- 
Market, exa7nined and dijfefledy purfuant to an 
Order of the Society, ^y F, Nicholls. M V. 
^ral. Anat. Oxon. F. 3^. S. 
LONDON: 
Printed for W. I n n y s, at the PFeJ^End of St. 
Paur?> ChurcFTard. 
MDCC XXX. 
