_Secondly_, Not to have the feet cold at lying down; an accident common to weak persons, and which is, for many reasons, hurtful to them. The rule of HIPPOCRATES should be scrupulously observed, _To sleep in a cool place, taking care to cover one’s self_[113]. _Thirdly_, And what is yet more important, not to lie down upon a full stomach: nothing disturbs more the sleep, nor contributes more to render it disquieting, painful, heavy, or overwhelming, than a laborious digestion in the night. Depression of spirits, weakness, disgust, weariness, incapacity of thought or of application to any thing the next day, are the inevitable consequences. ——_vides ut pallidus omnis_ _Cœna desurgat dubia? Quin corpus onustum,_ _Hesternis vitiis animum quoque prægravat una_ _Atque affligit humo divinæ particulam auræ._ HOR. On the contrary, nothing is more efficacious toward procuring a sweet, calm, uninterrupted, refreshing sleep, than a light supper. Freshness, agility, gaiety, are, the ensuing day, its necessary consequences. _Alter, ubi dicto citius curata sopori_ _Membra dedit, vegetus præscripta ad munia surgit._ Ibid. “The time of sleep (says Mr. LEWIS, with great reason) is that of nutrition, and not of digestion.” Accordingly he requires of his patients the greatest severity as to their supper: he prohibits to them, and never was a juster prohibition, all flesh-meats at that meal; he allows them nothing but a little milk, and some bread sippets, and that two hours before they go to bed that the first digestion may be over before they lie down to sleep. The Atlantics, who were strangers to an animal diet, and who never ate any thing that had life, were famous for the tranquillity of their sleep, and hardly so much as knew what dreams were. _MOTION._