56 xiyrlciUtaral Gazette of JSl.S.lF. [Jan. 2, 1908. 



terriblL! scuurgu lliul (.^Kiccuslaiul poullrv -kccprrs were >iuljJLfl tu. In her 

 work, she says, " 1 conclude that warts ai'e i)eculiar to the warmer parts of 

 the cohjiiies, as 1 liavu never seen it in thr cuMcr parts. It conies like a 

 .seal\' fiiiption, t^enerallv aliout the head, iivaii, and nnstrils, and 1)\" degrees 

 the whole liead is eovt're<l, the chickens t"re(|nentlv iioinii' bliiul, and it" not 

 hand iv^l \\\\\ die of starvation. It is wonderfully infectious, seeming to 

 l^e in the air. 1 once hud three cliickeiis affected, and isolated them at once, 

 but in ten days 1 had tliirty in the same state. T!ie disease has l)alHeil 

 and disiiearteiied many poultry men, L'O nr .■)ll po' cml. df thr cliickens 

 f reipn-nt l\- beim;- lost." 



in America, thi; disease, when it ot'curs, is of so mild a form as not to 

 warrant any college experiments, and is dealt with liiihily in a book on 

 poultrv diseases in that country, as follows :'" Chicken-pox is known 

 bv the scabbv idcers appearing on any pai't of the body, but principally on 

 the head and wings. 'I'he ulcers exude a li(|uid, and pcesent themselves 

 in masses, and have no great dejith. Toiictliei- with the cniplion the bird 

 shows great thirst, and a idse of tt'iiijierat ure. " 



Lewis Wright, the welhknown Knglisii authoi'ity, says: — "The disease 

 is rare in England, but frequent in hot climates, sut-h as the Cape, 

 Australia, and America. It beii'ins with a wlnt.v-hrown excrescence 

 near the base of the beak, and extends rapidly, becoming;- yellowish as it 

 does so. It also invades the head and neck. If the nodules are bi'oken, 

 they exudt' matter. The c<jmplaint is nianifestly i-ontaL;ious, and isola- 

 tion an<l disiid'ect ion are the Hrst measures." 



The first symptom is the fever, or incubation stagi', and rarely observed. 

 After this the rash or eru])tions appear ; they then grow and sjiread. 

 change appearance gradually, ripen, l)ecome scabby and ilry, and ulti- 

 mately fall off, Ijut not infrecpiently, as with childi'en, leaving some ill 

 results. We have yet no knowledLie' of the I'xteiit of the fever stage of the 

 disease. The observant ]ioultry-man will, however, witness a comi)lete 

 change in the droppings of tlie fowls, the well-known appearance of that 

 from healthy fowls l)eing changed to a soft yellowish matter, at once in- 

 dicative of ill-health. Tlu' eru])tioii then follows, and, although locally 

 termed warts, such name can \k' oidy applietl to the later stage of the 

 disease when the eruptions become drv ami scabby. These at the com- 

 mencement ai'e small, pink in coleur, and of irregulai' si/e. and most 

 iioticeal)le on the coml), which increase in si/e, ultimately runnin'.; into 

 one am)ther, resulting m a large patch of eruptions, whicli in the 

 ordinary cotirse would soon dry up and fall off. iialher than this, how- 

 ever, when the ripening stage is reached they bi^come ilchv, the fowls 

 scratch the healing spots, the seal) is jiremat ui'ely removed, leaving a raw 

 patch of flesh which is further irritated by mos(piitoes. the three oi' four 

 weeks stage of thi- disease beiiiL;' thus fi-i'qucntly leiiLithened into double 

 that time, ami often with the loss of one or both eyes. It most often 

 happens that chicken-pox brinies other ailments, roup and diarrhoea 

 frequentlv lesulting and emitributing to great moi'tality. 



