418 REPORT—1840. 
the chest being then divided, some dark blood flowed in jets from 
the cut vessels ; the animal then made six or seven deep gasps, 
during which the heart beat more strongly, and the eye slightly 
winked on being touched. This partial restoration was probably 
caused by the bleeding. On taking out the lungs scarcely a 
trace of contractility could be detected in them by the dyname- 
ter, and the cut ends of the tubes shrunk but little on being gal- 
vanised. The trachea was quite relaxed, and scarcely any 
approximation of the cartilages was produced by galvanism. 
The arteries also were less contracted than usual. 
20. About thirty grains of extract of stramonium were in- 
jected into the cellular tissue of the neck of a dog. The breath- 
ing soon became very quick, laborious, and occasionally ster- 
torous. Lower extremities very weak and dragged, as if para- 
lysed. Pupil extremely dilated ; but the sensibility of the eye 
and consciousness of sounds remained till near death, which 
took place twenty-five minutes after the injection. The heart 
was found motionless and unirritable, its right cavities and the 
veins much gorged with blood ; left cavities and arteries empty. 
On cutting and galvanising the bronchi, very. little contraction 
was perceived, and none with the dynameter. Csophagus and 
intestines still irritable. 
21. Two grains of nitrate of strychnia, dissolved, were injected 
into the carotid of a large dog. In less than four seconds te- 
tanic convulsions, which continued a minute. The eye became 
insensible in half a minute. On opening the chest the heart 
was found motionless and unirritable; right cavities and veins 
enormously distended. Lungs being taken out and galvanized, 
at first raised the dynameter two tenths, but not afterwards. 
Voluntary muscles relaxed after death, and were less irritable 
than usual. 
22. A solution of four grains of nitrate of strychnia was in- 
jected into the jugular vein of a donkey two months old. In 
fifteen seconds spasms and tetanic stiffness. Eye soon ceased 
to wink on being touched. Spasms of neck and back continued 
for more than a minute On opening the chest the heart was 
still beating, the veins and right side much distended. The air- 
tubes gave no sign of contractility with galvanism, although the 
experiment was continued for some time. 
23. Wishing to compare the contractility of the bronchi with 
that of the arteries, 1 made the following experiment. Imme- 
diately after the death of the subject of the preceding experi- 
ment, ligatures were applied to the top of the descending aorta 
and to the left common iliac, and adynameter to the right com- 
mon iliac, some carbonate of soda and water being first injected 
