It may be necessary here to mention, that the celebrated German physiologist, Müller, has treated on the identity in structure of all descriptions of glands. However, it is to be presumed that the following observations are not rendered thereby superfluous or misplaced, as they tend to bringmore particularly before the observation, the connexion existing between two important divisions of secreting organs, both in a functional and anatomical view; which, by the numerous and almost perplexing varieties of disease they are subject to, render them appropriate and interesting subjects of discussion.