1852.] Linnean Society. 195 



every department of zoology, in the great work entitled ' De- 

 scrii)tion de I'Egypte.' Nearly the whole of the zoological plates 

 of that work were drawn under his direction, and the memoirs 

 and explanations -which were intended to accompany them were 

 far advanced in preparation, when severe illness, brought on by 

 intense application, incapacitated him from putting the finishing 

 touch to his labours, and rendered it necessary, in the year 1825, to 

 obtain the assistance of his pupil M. Victor Audouin, to put in order 

 such of his MSS. as were sufficiently complete for publication, and 

 to give summary explanations and indications of the subjects figured 

 on the remaining plates. From this time forward M. Savigny ceased 

 to publish, blindness depriving him of the power of observation, and 

 hypochondriasis casting a gloomy shadow over the remainder of his 

 existence. Of his separate publications the most remarkable are a 

 learned and very elaborate ' Histoire naturelle et mythologique de 

 ribis,' 8vo, Paris, 1805, and a series of ' Memoires sur les Animaux 

 sans Vertebres,' 2 vols. 8vo, Paris, 1816, containing his " Th^orie 

 des Organes de la Bouche des Crustaces et des Insectes," his " Re- 

 cherches anatomiques sur les Ascidies composees et sur les Ascidies 

 simples," and his " Systeme de la Classe des Ascidies." In the first 

 of these memoirs he led the way to that more just appreciation of 

 the nature and origin of the appendicular organs of Insects and Crus- 

 tacea, which has since been universally adopted, and which his suc- 

 cessors in Comparative Anatomy have so widely generalized and ex- 

 tended. In the two last he gave a complete anatomical and systematic 

 account of a class of animals till then very imperfectly understood, 

 and which, notwithstanding his researches and those of many later 

 anatomists, are still the subject of much doubt and controversial dis- 

 cussion. He was elected a Foreign Member of the Linnean Society 

 in 1S22, and a Member of the Academy of Sciences of the Institute 

 of France in 1821 ; and he died on the 5th of October, 1851. 



Joachim Frederic Schomo was the son of a wine-merchant in Co- 

 penhagen, and born in that capital in the year 1789. His attach- 

 ment to botany was developed at an early period, and at the age of 

 thirteen or fourteen he attended the lectures of the celebrated Vahl. 

 Subsequently he became a student in the Faculty of Laws, and 

 passed a brilliant examination. In 1816, M'hile holding a subordinate 

 ofiice in the Danish Chancery, he wrote his inaugural Dissertation 

 for the degree of Doctor, ' De Sedibus Plantarum Originariis,' Svo, 

 Havn. 1816. From 1817 to 1820, and in 1829 and 1830, he made 

 repeated journeys, partly at the public expense, through Germany, 

 France and Italy, which last he again visited in 1839 and 1840, on 



