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research the character of his mind led him less towards speculation 

 than to the determination of facts ; and accordingly he has left behind 

 him a rich store of trustworthy materials, the result of his acute and 

 careful observation and faithful record. His knowledge on all sub- 

 jects of microscopic investigation was extensive and accurate, and 

 he was ever ready to give the benefit of it to others, and especially 

 to his numerous medical brethren, who continually sought his aid on 

 questions determinable by means of the microscope. 



Professor Quekett left a widow and four children, to whom the 

 Council of the College of Surgeons, in consideration of his merits 

 and services, have kindly and considerately granted a liberal pension. 



FRIEDRICH TIEDEMANN, Foreign Member of the Royal Society, 

 was bom at Cassel, on the 23rd of August 1781. In his father, 

 Dietrich Tiedemann, a Teacher in the Caroline College in Cassel, and 

 afterwards Professor of Philosophy in the University of Marburg, 

 he was not only blessed with an affectionate and watchful parent, 

 but enjoyed the advantage of an accomplished and painstaking pre- 

 ceptor, to whose private tuition, indeed, much more than to the 

 teaching of the school and gymnasium, he was indebted for his early 

 educational training, and for a thorough grounding in classical studies. 



While yet a boy at the gymnasium of Marburg, to which town 

 his father and family had removed, the young Tiedemann showed a 

 decided turn for those pursuits in which he was destined in after 

 life to become so eminent. He delighted in dissecting and preparing 

 such animals as he could procure, and was thus naturally led to the 

 pursuit of Zoology and Medicine. In 1 798 he accordingly entered 

 the University of Marburg, where he remained until 1802, diligently 

 studying medicine and the auxiliary sciences. The progress he 

 made was, however, owing more to his own ardent love of the work 

 he had undertaken than to the professorial teaching of the Univer- 

 sity, which, one or two chairs excepted, appears to have been at 

 that time conducted in an irregular and slovenly way. For better 

 means of studying practical medicine he therefore went to Bam- 

 berg, where he made the acquaintance of Dollinger and thence to 

 Wiirzburg ; and having in the mean time returned to Marburg, he 

 took his Doctor's degree in that University in 1804. 



Tiedemann' s first essay as a teacher of anatomy was made in 1803. 



