503 



(5) Perchlorate of Lead, 2(PbClO 4 ) + 3H 2 Q. 



Perchlorate of lead is an extremely deliquescent salt ; it is best 

 prepared by dissolving carbonate of lead in perchloric acid. The 

 salt may be dried in vacuo over sulphuric acid without losing water. 



Found. 



460-0 100-00 



I desire to acknowledge the able assistance I have received from 

 M. Schorlemmer in carrying out the above experiments. 



December 19, 1861. 



In consequence of the lamented Death of His Royal Highness 

 The Prince Consort, no Meeting took place. 



January 9, 1862. 

 Major-General SABINE, President, in the Chair. 



The President, on the part of the Council, submitted to the 

 Meeting the following Address of Condolence to be presented to 

 the Queen : 



We, YOUR MAJESTY'S most dutiful and loyal subjects, the Pre- 

 sident, Council, and Fellows of the Royal Society of London for 

 improving Natural Knowledge, desire humbly to oifer to YOUR 

 MAJESTY the sincere expression of our sorrow for the irreparable 

 loss which YOUR MAJESTY and the nation have sustained by the 

 death of His ROYAL HIGHNESS THE PRINCE CONSORT. 



While we deeply share in the universal lamentation which this 

 great calamity has called forth, we claim the mournful privilege of 

 giving expression to our special grief for the loss of a Prince who, 

 to his other high qualities and claims to the nation's esteem and 

 gratitude, united a just appreciation of the importance to mankind 



