50 MEMOIR OF DR. DALTON, AND 



Nitrous oxide 13.7 



Sulphur 14.4 



Nitric acid 15.2 



Sulphuretted hydrogen 15.4 



Carbonic acid 15.3 



Alcohol 15.1 



Sulphureous acid 19.9 



Sulphuric acid 25 .4 



Carburefted hydrogen from stagnant water 6.3 



Olefiantgas 5.3" 



I have given as much as possible, in his own words, the 

 most important points attended to by Dalton up to this 

 date. It was not my intention to inquire into the particulars 

 relating to the novelty of the views taken by him, except 

 on the atomic theory, and have therefore purposely left out 

 any such opinions as might require discussion; nor have I 

 shewn in all cases where advancing science has differed from 

 his results. Some things in the papers alluded to were bold 

 and strikingly new, some things are improvements on the old, 

 some are mere re-statements of the old, but all is done in a 

 firm, clear, and determined manner, as by a master in the 

 business, going to the real point of difficulty in every case, 

 and at all times avoiding unimportant details or vain orna- 

 ment. He drives on like a new settler, and clears the 

 ground before him, leaving it rather rugged it is true; 

 nevertheless it is resolutely cleared. 



