Manchester Memoirs \ Vol. lix. (19 15), No. 1£. 9 



my arrival I announced my intention to lecture by 

 advertisement of handbills ; I obtained introduction to 

 most of the professional gentlemen in connection with 

 the college, and to others not in that connection, by all 

 of whom I have been treated with the utmost civility and 

 attention ; a class of 80 appeared for me in a few days ; 

 my five lectures occupied me nearly two weeks." He 

 was afterwards induced to give a second course, and then 

 proceeded to Glasgow, where he also lectured. He was 

 very pleased with his reception, for "on these occasions 

 he was honoured with the attention of gentlemen, 

 universally acknowledged to be of the first respectability 

 for their scientific attainments ; most of whom were 

 pleased to express their desire to see the publication of 

 the doctrine." This stimulated Dalton to prepare for the 

 press " A New System of Chemical Philosophy," Part I. 

 of which appeared in 1808. It is dedicated "to the 

 Professors of the Universities and other Residents of 

 Edinburgh and Glasgow, who gave their attention and 

 encouragement to the lectures on Heat and Chemical 

 Elements, delivered in those cities in 1807 ; and to the 

 members of the Literary and Philosophical Society 

 of Manchester, who have uniformly promoted his 

 researches." . 



He issued a special syllabus of the course of the Five 

 Lectures, of which two were devoted to heat and the 

 remainder to chemical elements. He was absent in 

 Scotland for eight weeks and his expenses were „/,30, 

 but no record has been found of his receipts. 



1808. 



Dalton prepared for his next course of 15 lectures 

 in Manchester a 24-page pamphlet forming a very full 

 epitome of his lectures. The title is : — 



