266 
In it the principles established in the preceding parts were 
applied to ascertain the exact power of each of the letters of the 
Egyptian alphabet. Those contained in the alphabet lately pub- 
lished by Chev. Bunsen were first examined; and then the other 
characters alleged to be alphabetic: some of which were classed, 
in Chev. Bunsen’s arrangement, among thesyllabic signs, while 
others were altogether omitted. A new class of letters having 
the power of ch, and corresponding to the Hebrew ¥, is esta- 
blished, to which the long serpent belongs, occurring in the 
word chat, signifying ever. 
Robert Ball, Esq., exhibited various anatomical prepara- 
tions of marine animals made by Mr. Goadby of London, 
June 22. 
REV. HUMPHREY LLOYD, D.D., President, in the 
Chair. 
Mr. Oldham, on the part of Mr. R. Mallet, who was 
unavoidably absent, described the objects, construction, and 
use of certain new instruments devised by the latter for self- 
registration of the passage of earthquake shocks. ; 
Instruments previously intended for this purpose have not 
possessed the power of self-registration ; they have consisted 
either in the trace left by the motion,of a viscid fluid on the 
containing vessel, or they have been upon the principle of the 
inverted pendulum, or watchmaker’s noddy. Instruments so 
constructed are objectionable, because having themselves 
times of vibration of their own, which may conflict with those 
of the earthquake shock, they are liable to fail in point of 
delicacy. They also possess several inconveniences of a me- 
chanical kind in being adapted to self-registration. 
The objects to be attained in the instruments which the 
author has had in view, are : 
