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myxinoid fishes ; his monograph on the latter class is vei'y minute 

 and extensive, forming a sketch of the anatomy of the whole 

 class of fishes. From fishes he turned his attention to echino- 

 derms, more particularly to pentacrmus and the asteroids, assisted 

 by Prof. Troschel ; at the same time giving occasional isolated 

 descriptions of fishes. He studied the embryonic growth of 

 echinoderms and of fishes, with the most astonishing results ; for 

 these the Academic des Sciences of Paris awarded him the Cu- 

 vier prize three years ago. He made extensive observations on 

 the vocal apparatus of birds, determining thus their affinities. 

 Since 1834 he edited the Archives, or Journal of Comparative 

 Anatomy and Physiology, himself writing an annual report on 

 the progress of these sciences. The Transactions of the Berlin 

 Academy are full of his elaborate papers. A few years since he 

 suffered shipwreck, attended by the death of many of his beloved 

 companions ; his mind never recovered from the shock of that 

 event, which no doubt contributed to his own early decease. 



Prof. Agassiz said he hoped at some future time to 

 present to the Society a sketch more extensive, and more 

 worthy of this most eminent scientific man. 



"Dr. Bodichon, a French gentleman residing in Al- 

 geria, present by invitation, gave an account of the 

 various races of men occupying Algeria, from personal 

 observation. 



There are two white races ; one, living in the mountains, the 

 Mauritanians, Numidians, or Berbers ; and the Asiatics or Arabs. 

 1. Also called Kabyles, living in the mountains, small in stature, 

 warlike, democratic, dwelling in villages resembling the Swiss, 

 planting trees, enjoying plentiful harvests, fruits, &c. — very inde- 

 pendent and noble in their sentiments ; they have no judges, 

 often settling their disputes by an appeal to the first person who 

 passes by ; though polygamous, they prefer a single wife ; they 

 are fine soldiers, and are not afraid of European troops. He 

 considers these as an indigenous race, and the same as the brown 

 inhabitants of Southern Europe. 2. The Arabs, a tall, brown 

 race, excellent horsemen, nomadic, possessing no permanent vil- 



