10. _Soemmering's fine work on the anatomy of the ear_, has been translated into French, and his splendid folio plates copied in lithography. 11. _Does the conjunctiva run over the cornea?_ Messrs. LECOQ, LEBLANC, and ARTUS, state that they have each seen a case in which regular _skin_ and _hair_ were seen, forming a small patch on the cornea of the eye of a quadruped. This is considered as a proof of the existence there of a membrane naturally analogous to the skin; which must, of course, be the conjunctiva. An officer saw another case, in which a hair was seen in the middle of the eye of a horse.--_Bulletin._ II. PHYSIOLOGY. 12. _Electro-Galvanic phenomena of Acupuncturation._--M. POUILLET, after making a complete circuit, through a needle introduced in acupuncture, through wires, and through the patient's mouth, found, by means of a multiplier of SCHWEIGHER with a magnetic needle, that the electro-magnetic rotation could be readily produced; at least so far as to effect small vibrations backwards and forwards. On repeating it with two needles, one of them run into an artery and another into a vein, or one into the medulla spinalis, at the neck, and another into an extremity, in a rabbit, no effect whatever took place.--_Magendie's Journ. de Physiologie._ 13. _Variations in Milk._--Milk, says M. VALLOT, in his memoir read to the Academy of Dijon, may be _red_. The cause of this is unknown, though it has given rise to superstitious fears. Some have observed that the cow's teats are then tender. Whether this be cause or effect has not been ascertained. _Yellow milk_ is said to have been produced by the cow's eating the caltha palustris, (marygold.) _Blue milk_, from a cause still unknown, in the departments of Seine-inferieure and Calvados. Some have ascribed it to the hyacinthus comosus; others to butomus umbellatus. The _green milk_ of some writers is supposed to be only blue. _Milk not coagulable_ is produced by feeding on husks of green peas, and on mint. _Bitter milk_, from wormwood, sonchus alpinus, and the leaves of the artichoke; and in goats, from eating freely of elder, (sambucus nigra,) and potato-tops; _a disagreeable taste_, from turnips, in Upper Canada. _Garlicky milk_, from causes well known. _Insipid milk_, and _lead-coloured butter_, from equisetum fluviatile. _Milk unnaturally sweet and luscious_, (sucre,) from alpine clover, (trifolium alpinum;) and _red butter_, from the ripe berries of asparagus.--_Bulletin._ 14. _Hyoscyamus dilates the pupils of the eyes_, the same manner as stramonium, several Eastern species of datura, and belladonna, which the Europeans use. The strongest species was datura fastuosa.--_Oriental Magazine, apud Du Fermon._