There are several cases among the older writers in which odors are said to have produced abortion, but as analogues are not to be found in modern literature, unless the odor is very poisonous or pungent, we can give them but little credence.

The Ephemerides gives the odor of urine as provocative of abortion; Sulzberger, Meyer, and Albertus all mention odors; and Vesti gives as a plausible cause the odor of carbonic vapor.

The Ephemerides mentions singultus as a cause of abortion.

Mauriceau, Pelargus, and Valentini mention coughing.
Hippocrates mentions the case of a woman who induced abortion by calling excessively loud to some one.

Fabrieius Hildanus speaks of abortion following a kick in the region of the coccyx.