THE DIAGNOSIS OF DISEASE 501 
External Symploms and the Diseases which they Indicate. 
Compiled by the Department of Biology of the University of Maine. 
Symptoms. Diseases Indicated. 
Abdomen swollen............. Peritonitis; dropsy; white diarrhoea. 
Belching of gas............... Inflammation of the crop. 
Breathing abnormal,—‘.ec., too All diseases of the respiratory system; arsenic 
slow, too rapid, wheezing, poisoning; pericarditis; gapes; air-sac mite. 
whistling, or snoring. 
Choking... u sau een ecs guess 3 Arsenic poisoning. 
Comb pale...............008. Tuberculosis; dropsy; air-sac mite; infectious 
leukaemia; white diarrheea. 
Comb first pale but later dark... Enteritis. 
Comb very dark.............. Liver disease; blackhead; congestion of lungs; 
pneumonia. 
Comb yellow................. Liver disease; visceral gout. 
Comb with white powdery scurf.White comb. 
Constipation................. Simple constipation; indigestion; inflamma- 
tion of the oviduct. 
Convulsions.................. Arsenic poisoning; copper, lead, or zinc 
poisoning; epilepsy; harvest bug. 
OGushy o.ks Atemedas way Diseases of the respiratory system. 
Crop enlarged and hard........ Crop-bound. 
Crop enlarged and soft........ Inflammation of the crop; enlarged crop; 
gastritis. 
Diartheasiscnciccscew awa ees Diseases of the alimentary tract; poisonings 
of all kinds; blackhead; tuberculosis; 
cholera; roup; white diarrhoea. 
Emaciation................40- Tuberculosis; aspergillosis; visceral gout; 
mites; white diarrhoea. 
Eye, expansion of pupil........ Arsenic poisoning. 
Eye, sticky discharge from... ..Catarrh; roup. 
Face swollen................. Roup. 
Droppings bright emerald-green.Cholera. ; 
Fever, very pronounced........Peritonitis; aspergillosis; infectious leukemia; 
inflammation of the oviduct. 
Lameness.........---.-.20-405 Tuberculosis; aspergillosis; rheumatism; scaly 
legs; bumble foot. 
Legs, roughened with scales 
raised. Scaly legs. 
Mouth, mucous discharge...... Congestion of the lungs; pneumonia; gapes. 
Mouth, white, cheesy patches. .Roup; canker. 
Neck bent back............... Poisoning; congestion of the brain; wry-neck. 
Neck limps sicsscsena nin wea Limber neck. 
Paralysis meme vcs ah sees se eae’ ¢ Poisoning; apoplexy; heat prostration. 
Saliva, abundant secretion..... Arsenic poisoning. 
Skin, scaly and incrusted...... Body mange; favus. _ 
Staggering.................5. Congestion of the brain; leg weakness. 
Thirst, excessive.............. Hypertrophy of the liver; peritonitis; asper- 
gillosis, tapeworms. 
Tongue, hard and dry......... Pip; diseases of the respiratory system. 
Tumors on head.............. Roup; chicken pox. 
Urates yellow..............0., Cholera. 
Vent, mass of inflamed tissue . 
projecting from. Prolapsus of the oviduct. 
Vent, skin inflamed with yellow 
discharge and offensive odor. Vent gleet. 
