It is his theory that all medicinal virtues are comprised within those substances which we term vegetable poisons.
"Mosses from an Old Manse and Other Stories" by Nathaniel Hawthorne
Arnott has made observations relative to a substance produced near Aden, which is said to be used by the Somalies to poison their arrows.
"Anomalies and Curiosities of Medicine" by George M. Gould
The fact remains that the poison proceeds from those substances and from them alone.
"The Life of the Fly" by J. Henri Fabre
Pyridin is unquestionably present in tobacco smoke, and is a poisonous substance, although less so than nicotin.
"How to Live" by Irving Fisher and Eugene Fisk
They contain, in almost every instance, substances which are either directly or indirectly poisonous to the skin.
"Lights and Shadows of New York Life" by James D. McCabe
It acts, therefore, as an aid to healing, since it protects the wound from foreign substances and from poisonous and harmful germs.
"The Wonder Island Boys: The Mysteries of the Caverns" by Roger Thompson Finlay
The most deadly poison may be chemically undistinguishable from substances which are perfectly innocent.
"Short Studies on Great Subjects" by James Anthony Froude
Max came at him again, and now its metal hide glistened with a dull green substance which Barrent immediately recognized as Contact Poison.
"The Status Civilization" by Robert Sheckley
The poisonous substance which they produce is absorbed by the blood.
"The Eugenic Marriage, Vol. 3 (of 4)" by W. Grant Hague
The soil burst at several places, giving issue to water strongly impregnated with poisonous substances.
"Complete Story of the San Francisco Horror" by Richard Linthicum
A poisonous substance composed of minute fungi.
"Golden Days for Boys and Girls" by Various
The bitter kind contains a poisonous substance which is entirely destroyed by cooking.
"The Hawaiian Islands" by The Department of Foreign Affairs
That the white substance was poison I had not a doubt.
"Two Wyoming Girls and Their Homestead Claim" by Carrie L. Marshall
It has, I know, been sometimes said that putrid animal substances, however unpleasant their odor might be, were not poisonous.
"Forty Years in the Wilderness of Pills and Powders" by William A. Alcott
Practically nothing is known about the nature of the poisonous substances concerned, except that they are heat-resistant.
"Food Poisoning" by Edwin Oakes Jordan
An oily, black, poisonous substance partly soluble in alcohol was obtained.
"Some Constituents of the Poison Ivy Plant: (Rhus Toxicodendron)" by William Anderson Syme
She felt the substance warming in its poison by her bosom, and, in the bitterness of her grief, smiled.
"Menotah" by Ernest G. Henham
In a couple of hours they feel tingly all over, and they know that there most be poisonous substances in their circulation.
"Psychotherapy" by James J. Walsh
The usual cause for the high tension is probably the presence in the blood of some poisonous substance.
"Arteriosclerosis and Hypertension:" by Louis Marshall Warfield
Several substances, as sausages, cheese, bacon, &c., also become poisonous from putrefaction.
"Memoranda on Poisons" by Thomas Hawkes Tanner
German investigators have confirmed that a car used by a contact of fatally poisoned ex-spy Alexander Litvinenko before the two men met was contaminated with the rare radioactive substance polonium -210, police said Monday.
Many sorghum- and sudan-type plants, including johnsongrass, can release a poisonous substance known as prussic or hydrocyanic acid.
The widow of Palestinian leader Yasser Arafat said Wednesday she wants his body exhumed to find out whether he was poisoned after tests showed high levels of a radioactive substance on some of his personal belongings.
A ricin scare at Fort Bragg put military and Fayetteville haz-mat crews on high alert after reports emerged of someone having the poisonous substance on post.
In the context of biology, poisons are substances that cause disturbances to organisms, usually by chemical reaction or other activity on the molecular scale, when a sufficient quantity is absorbed by an organism.
It covers over 250 toxins and spans a wide variety of potentially poisonous substances including pesticides, plants, foods and cleaners.
If you think your pet has ingested a poisonous substance, the Pet Poison Hotline is a service available 24 hours, seven days a week for pet owners and veterinary professionals that require assistance treating a potentially poisoned pet.
To comply with state safety procedures, daycare centers and family daycare homes must demonstrate that they've provided safe storage for all poisonous substances.
The only animal I can think of right off with poison is the poison dart frog that has a poisonous substance on its skin.