27 
of Edinburgh Session, 1862 - 63 . 
of having carried on these important labours, under very great 
difficulties, over a terrestrial arc of 22° of latitude, extending from 
the Isle of Ivica in the Mediterranean, to that of Unst, not very far 
from the Arctic Circle. Of his true devotion to the scientific career 
which he had proposed to himself, it is impossible to speak too 
strongly. No distinctions except literary ones had any attraction 
for him. He carefully eschewed those political promotions coveted 
by too many of his academic compeers. His views on politics, 
though definitely monarchical, were never obtruded. The isolation 
induced by his habits of unremitting study fostered a coldness of 
disposition often manifested by him towards other scientific men. 
He had few intimate friends out of his family circle, and his 
encouragement towards young aspirants was cautious and inter- 
mitting. It is worthy of being added in his favour, that during 
the last thirty years of his life he recognised, in a marked manner, 
the obligations of his religious creed. Notwithstanding his very 
advanced age, he continued his studies on Indian astronomy to 
within a very short time of his death, which he met with Christian 
composure, on the 3d February 1862, when he had nearly completed 
his eighty- eighth year. 
Fkiedeich TiedExMann, the eminent anatomist and physiologist, 
was born at Cassel in 1781, and died on the 22d January 1861, in 
the eightieth year of his age. His death was inadvertently not 
noticed at our last anniversary. Tiedemann was one of the most 
eminent comparative anatomists and physiologists of Europe. His 
earliest paper of note, that on the Circulation of the Echinoder- 
mata, obtained a prize offered by the French Academy of Sciences. 
He became Professor of Anatomy at Heidelberg in 1816, and con- 
tinued so until 1848. During this period he published a cele- 
brated work on the Human Brain, and another on that of the 
Monkey, as well as several works in conjunction with Oppel and 
Treviranus. He was blind during some of the later years of his 
life, but recovered his sight through an operation for cataract. 
Subsequent to bis leaving Heidelberg, he lived in great retirement 
at Bremen and Frankfort. 
Louis Albert Necker, honorary Professor of Mineralogy and Geo- 
