ME GRIMS — MEMBRANE 



Apothecaries' Weight. 



20 grains . . . . = i scruple. 



3 scruples . . . . = i dram. 



8 drams . . . . = i ounce. 



12 ounces . . . = i pound. 



I sovereign weighs about 2 drams. 



I florin „ „ 3 



I shilling „ ,, \\ „ 



I tablespoonful of fluid = «<^c?«/ i ounce. 

 I dessertspoonful ,, = ,, \ 

 I teaspoonful „ = „ \ „ 



Note. — The two last tables above are only approximately- 

 correct, and should NOT BE USED for weighing or measuring 

 poisons or powerful medicines. 



Megrims is a brain trouble arising from a defect in 

 the circulation of the blood, and generally attacks horses 

 when at work. Overfeeding is sometimes responsible for 

 an attack, and so is over-exertion after feeding, though it 

 may safely be assumed that megrims will not appear in a 

 horse whose brain is in a healthy state. 



Symptoms. — A constant shaking and high carriage of the 

 head, unsteadiness in action, followed by a fall to the ground. 

 If left to himself the horse will probably be able to get up 

 in a little time, but he will be dull and heavy for a while, 

 after which he will appear to have quite got over the attack. 



Treatment. — Throw cold water over his head, loosen the 

 throat latch, and, if possible, remove the collar and bridle. 

 A horse which is subject to frequent attacks of megrims may 

 be regarded as incurable, for his brain will be more or less 

 diseased. As harness horses are the commonest sufferers they 

 are dangerous to their owners. 



Membrane. — A thin and delicate but strong tissue which 

 covers the cavities of the body. Thus the mucous membrane 



213 



