MEMOIR OF BARON HALLER. 27 
on the examination of Haller’s very numerous and 
successive labours, is the rapid changes which he 
made from one subject to another. Most profoundly 
versed in some of them, he seems on all occasions 
on the level with the most advanced cultivators in 
each department, and frequently surpasses them all. 
However much then he may be the object of our 
admiration, on account of his classical attainments, 
his poetical powers, or his botanical knowledge, we 
now remark that he became still more eminent for 
his physiological researches. It is upon these that 
Ilia highest celebrity is based, and in this view, 
therefore, we are now chiefly to regard him. On 
the death of his master, Boerliaave, in 1738, Haller 
published his prelections, with much original matter, 
in six volumes, which appeared successively from 
1739 to 1745. But his own discoveries and im- 
provements soon tended to render this work obsolete ; 
and in 1747 appeared the first edition of his “ First 
Lines of Physiology ,” a synopsis of his own system 
of that branch of science. This is a truly valuable 
production which, long after the death of the author, 
was used as a text-book in the schools, and has 
only lately been superseded. During the subse- 
quent years of his life, he continued to augment 
and perfect this production,’ and published it in 
eight volumes, quarto, between the years 1757 and 
1766, under the title of Elements of Physiology. 
Though referring chiefly to man, as usually exhibit- 
ing the utmost perfection of structure, yet it is by 
no means confined to him, and ranges widely over 
