. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. 244 KEN. on the other with the veins, and invested by a cellular tissue in a manner which he does not very clearly explain. He believes that there is a close connexion between the Mal- pighian bodies and the tubes, as manifested by the fact, that the tubes may be filled by a forcible injection of the Malpighian bodies through the arteries : further confirmation of this fact being afforded by the occasional pas- sage of blood and other materials through the same channels, and the tubes being found filled with blood after
. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. 244 KEN. on the other with the veins, and invested by a cellular tissue in a manner which he does not very clearly explain. He believes that there is a close connexion between the Mal- pighian bodies and the tubes, as manifested by the fact, that the tubes may be filled by a forcible injection of the Malpighian bodies through the arteries : further confirmation of this fact being afforded by the occasional pas- sage of blood and other materials through the same channels, and the tubes being found filled with blood after death. With respect to the last observation, which he quotes from Berlin, he appears to have some doubt, and suggests that the vessels containing the blood may have been blood-vessels, and not urinife- rous tubes. Since the time of Schumlansky, whose work above quoted was published in the year 1788, scarcely any addition was made to our knowledge of the structure of the Malpighian bodies until the publication of Mr. Bowman's paper*, already so often referred to. In some respects, indeed, the description given of the Malpighian bodies by the best anatomists im- mediately before the appearance of Mr. Bow- man's paper, is less accurate than that of Schumlansky, and some of his predecessors. Thus, Miiller-f-denied, in the most positive man- ner, the existence of any connexion between the Malpighian bodies and the tubes, and the possibility of injecting the latter from the former. Professor Miiller has since J acknow- ledged and confirmed the accuracy of Mr. Bowman's observations, which I shall now proceed to detail as much as possible in his own words, because it would be impossible to depart much from the language of his paper without incurring a risk of losing something of the clearness which characterises the original. The Malpighian bodies consist of a rounded mass of minute blood-vessels, invested by a cyst or capsule. The capsule was first par- ticularly described by Miiller
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