The annexed drawing exhibits the granules and animalcules of a human male being magnified from 900 to 1,000 times:—

1. Animalcules of a man, taken from the Vas Deferens, immediately after death. 2. Seminal Granules. 3. A bundle of Animalcules, as grouped together in the Testicle. 4. Seminal Globule. 5. Same surrounded by a cyst or bag. View larger image

1. Animalcules of a man, taken from the Vas Deferens, immediately after death.

2. Seminal Granules.

3. A bundle of Animalcules, as grouped together in the Testicle.

4. Seminal Globule.

5. Same surrounded by a cyst or bag.

The semen is never discharged pure; it is always diluted with the secretion from the prostate and other glands, and also the mucus of the urethra. A chymical analysis is thus given of 100 parts: