Among the conditions of environment which aid the development of tuberculosis may be mentioned stabling with lack of ventilation, damp buildings, the keeping of many animals together, drafts of air which cause colds and catarrhs, and, in general, everything which prevents the animals from developing and maintaining the highest condition of health.
"Special Report on Diseases of Cattle"
U.S. Department of Agriculture J.R. Mohler
Not only the germs of consumption, but those of pneumonia, colds, catarrhs, diphtheria, and other diseases, can be spread by spitting.
"A Handbook of Health"
Woods Hutchinson
It is widely used in bronchial catarrhs and in asthma on account of its sudorific and expectorant action.
"The Medicinal Plants of the Philippines"
T. H. Pardo de Tavera