Note 5 — PROLEGOMENA.

Meckel, with many others, entertain still the opinion that the corpus luteum precedes fecundation—but instead of supposing with Sir E. Home that it generates an Ovulum, the physiologist of Halle imagines that, like a testis, it serves to secrete a generating liquor—the semen feminæ. This theory is demolished by Boer’s, Plagge’s, and Messrs. Prevost and Dumas’s positive observations.