When we look at some scientific serials, and note the stuff which passes without comment we wonder what the Editor is for; no matter how absurd or unscientific, it seems that everything that comes to hand goes in, and then is copied and recopied everywhere as the veriest truth, simply because some titular personage turned the idea loose in some " scientific" corner. In a journal of high medical standing before us is a paper by one Dr. Carlos Finley on yellow fever. He tells us the "same conditions of temperature are necessary for the life of the mosquito as for the existence and spread of the yellow fever." The writer of this has found the mosquito as bad near the Arctic Circle as at New Orleans, and this is the well-known testimony of hyperborean travelers. But the yellow fever is unknown, and this is a sample of much that passes without comment.