190 MEMOIRS OF 



Saviour of the world ; and thev acknowledo-e 

 tliat the Divinity was united to him, in order to 

 effect this great work. This subtle shade be- 

 tween two heresies, for tliirty years occupied 

 that head which was required for the most im- 

 portant questions of science, and, without com- 

 parison, caused Priestley to write more volumes 

 than he ever produced on the different species 



of air His last moments were full of 



those feehngs of piety which had animated his 

 whole life, the improper control of which had 

 been the foundation of all his errors. He caused 

 the Gospel to be read to him, and thanked God 

 for having allowed him to lead an useful life, 

 and granted him a peaceful death. Among the 

 list of his principal blessings, he ranked that of 

 having personally known almost all his contem- 

 poraries. ' I am going to sleep, as you do,' 

 said he to his grandchildren, who were brought 

 to him, ' but we shall wake again together, and, I 

 hope, to eternal happiness ; ' thus evincing in 

 what belief he died. These were his last words ; 

 such was the end of that man, whom his ene- 

 mies accused of wishing to overthrow all mo- 

 rality and religion, and, nevertheless, whose 

 greatest error was to mistake his vocation, and 



