CONTENTS 
OF THE FIFTY-SECOND VOLUME. 
EXPERIMENTS made upon the hard Water at Black Rock 
near Cork, with a view to render the Waters of Limestone 
Districts more appiicable to domestic Uses. «. eh) NS 
Account of a North American Quadruped supposed to belong to 
the Genus Ovis. ae os oa oe et kS 
Account of the Gold and Silver Mines of Hungary. sae WB 
Account of the Process of Amalgamation used at Halsbriuck 
near Freyberg in Saxony, for the Extraction of Gold and 
Silver from other Ores. : a se ~. 26: 
Observations on the various Changes which take place on treat- 
ing Uric with Nitrous Acid, and on anew Acid called “* Ery- 
thric’”’ thence produced. «+  —« o a a OO 
Account of an electrical Increaser for the unerring Manifesta- 
tion of small Portions of the Electric Fluid. .. «+ 47 
On the New Astronomical Circle at Greenwich. .. «+ 52 
On Chemical Philosophy. a tase ie foo" dag rls 
On the Fructification of Seeds. «+ af os poe sf 
Onthe Comparative Powers of Algebra and Vulgar Arithmetic. 
; 88 
An Account of Experiments for determining the Length of the 
Pendulum vibrating Seconds in the Latitude of London. 90, 
173, 416 
Vol, 52. No. 248. Dec. 1818. a Account 
