BLI 



BLI 



bleeding more than those which are j BLIND, MOON. Cloudiness of 

 in constant exercise ; but especially , the eye, ending in cataract, 

 when their eyes look heavy and dull, j BLINDNESS. A deprivation or 

 or red and inflamed ; and when they j want of sight, originating from vari- 

 look yellow, and the horse is inflamed ous causes ; a complaint more fre- 



in his lips and the inside of his moutli 

 or when he seems hotter than usu- 

 al, and mangles his hay. These in- 

 dications not only show that bleed- 

 ing is required, but likewise lower 

 diet. The spring is the common sea- 

 son for bleeding horses ; but period- 

 ical bleeding should never be prac- 



quent in horses than in neat cattle or 

 sheep. 



Blindness in horses may be discern- 

 ed by the walk or step being uncer- 

 tain and unequal, so that they dare 

 not set down their feet boldly ; but 

 when they are mounted by an expert 

 horseman, the fear of the spurs will 



tised. In summer it is often neces- j frequently make them go resolutely 

 sary, to prevent fevers, always choos- 1 and freely, so that their blindness can 

 ing the cool of the morning for the ; hardly be perceived. Another mark 

 operation, and keeping them cool the by which horses that have lost their 

 remaining part of the day. Some | sight may be known is, that when 

 farriers bleed horses three or four i they hear anybody enter the stable, 

 times a year, or even oftener, by way they prick up their ears, and move 

 of prevention, taking only a very them backward and forward in a par 

 small quantity at a time, as a pint or ticular manner. 



a pint and a half There is, howev- j Blindness in Sheep. — A complaint 

 er, this inconvenience from frequent that sometimes occurs in these ani- 

 bleeding, that it grows into a habit, ' mals from their being much exposed 

 which, m some cases, cannot be easi- to either great dampness or long-con- 



ly broken off without hazard ; and, 

 besides, horses become weak from 

 frequent bleeding. The vein in the 

 neck is usually opened, but that un- 

 der the eye or in the leg is better, 

 when the inflammation is near those 



parts. 



BLEMISH. 



In farriery, any kind 



tinued snows. 



BLINKERS. The leathers attach- 

 ed to the bridle of carriage-horses to 

 direct their sight forward. 



BLISTERING. In farriery, the 

 operation of stimulatmg the surface 

 of some part of the body of an ani- 

 mal, by means of acrid applications, 



of imperfection in a horse or other i so as to raise small vesications upon 



animal. 



In horses, blemishes consist of bro- 



it. It is frequently employed for the 

 purpose of removing local affections 



ken knees, loss of hair in the cutting . of different kinds, such as hard, indo- 



places, mallenders and sallenders, | lent tumours. 



cracked heels, false quarters, splents, j BLISTER FLY. The bright 



or excrescences which do not occa^ 

 sion lameness ; and wind galls and 

 bog spavins, where they prevail to 

 any great degree. 



In forestry, the knots on the out- 

 side of trees, and shakes internally, 

 are termed blemishes. 



BLIGHT. A general term for the 

 diseases of trees and crops, whether 

 produced by temperature, moisture, 

 insects, or parasitic fungi. See Kust, 

 Mildew, Smut, Plant Lice, &c. 



BLIGHT, AMERICAN. The Eri- 



green and golden fly usually employ- 

 ed is the Caniharis vesicatoria, im- 

 ported from Europe ; but there are 

 several insects indigenous which pos- 

 sess equal power, as the potato flies 

 (C vitata and cinerca) and the black 

 caniharis (C. atrala). 



The potato flies are seen in Au- 

 gust, morning and evening, among 

 the foliage of the potatoes ; the head 

 is red, and the back black, with a yel- 

 low stripe ; and in the cinerea the 

 whole is black, with a gray hair, or 



osoma {aphis) lanigera, or woolly plant down. The wing cases {elytra) are 

 lice; they infest the apple and pear I hard. They are shaken off the vines, 

 tree occasionally. | killed by being thrown in hot %vater, 



I 97 



