234 



THE PRINCIPLES OF AGRICULTURE 



387a. An antiseptic is any material which destroys germs 

 or bacteria (284a). The muriatic or hydrochloric acid is present 

 in small amounts, ranging from 0.2 to 0.8 and upward in 1,000 

 parts in the different kinds of animals. 



3875. A substance may be acid or sour, in which case it 

 turns blue litmus red (153, 153a). It may be alkaline, as lye, 



Fig. 87. Stomach of sheep. 



Fig. 88. Crop and 

 gizzard of fowl. 



in which case it turns red litmus blue. It may be neutral, 

 giving neither reaction. 



387c. Flowerless plants, of which fungi, ferns, and bacteria 

 are examples, do not produce seeds, but spores. These spores 

 are usually single cells, and contain no embryo. They can 

 Tisually grow, even after becoming dry. Spores are commonly 



