probable that the mucus of the urethra then mixes with the fluid of the prostate gland, and forms a part of the discharge. This author confirms Wichmann’s remarks on the general effects of diurnal pollution. He says, “Since I read his treatise, I have found this pollution in diseases of languor, which I could not attribute to a special or primitive alteration of any organ; and I have discovered, that a great many cases of hypochondria, of slow nervous fevers, of consumptions, were kept up by this kind of gonorrhœa, to which the patients, unable to observe themselves, had paid no attention. I have known several individuals, who have been affected with this diurnal pollution for a long time, without experiencing any marked derangement in their health: to them, it was an inconvenience; rather than a disease. But in these cases, diurnal pollution is not habitual: it only occurs when continence of days or weeks, an exciting or substantial regimen, long exercise on horseback or in a carriage, have accumulated semen in its reservoirs, or have irritated specially the genital organs: then the least effort to expel the feces causes the seminal vesicles to pour forth the surplus of fluid which they contain. Let not this state inspire too much security. Diurnal pollution is commenced: it is not yet serious; but it may progress, return every day at each evacuation, and finally produce all the bad results noticed by Wichmann.” Wichmann said nothing in regard to the organic conditions of the diurnal pollution: he merely stated that this affection was the result of debility. M. Sainte Marie, on this point, makes many interesting remarks. He considers diurnal pollution as sometimes the cause, and sometimes the effect, of dorsal consumption; and he considers this to be an affection of the spinal marrow. We will quote this passage:--Diurnal pollution (says Sainte Marie) is sometimes only an effect; the origin of which must be sought after in a serious and primitive alteration of an important system of organs. Thus, we must reason, for instance, in respect to dorsal consumption. It is said, that one remarkable symptom of this disease is an abundant discharge of watery semen, which comes sometimes at each emission of urine. Involuntary diurnal pollution is here only a symptom: it occurs, because the genital organs do not receive, _from the spinal marrow_, the nervous and well regulated influence which they require to perform their functions properly. Hence, the super-abundant secretion of semen--its unfitness for fecundation--the relaxation of the seminal vesicles, which allow it to escape so readily--the atony of the scrotum--the inconvenient pulling of the spermatic vessels--the weakness of the erections--impotence, &c., &c. The same state of the organs which deprives the genital organs of life, explains, on the other hand, the wasting of parts which respond to this sensitive centre--the thinness of the loins, thighs, and lower extremities--the