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REVIEW — VARIOLA OVINA. 
the sheep as in man, we admit, and, indeed, its progress and 
symptoms vary in the different domesticated animals ; but these 
diversities are rather to be referred to the special arrangement and 
development of the component parts of the integument than to any 
real change in the nature of the malady. That these diverse ap- 
pearances are but modifications of the same affection is further 
proved by the fact, that the causes which produce, and the laws 
which govern, the extension of small-pox, both in man and in the 
inferior creatures, are identical.” 
Independently, however, of there existing striking resemblances 
between the symptoms, constitutional as well as local, of the two 
diseases, their causes will be found to be the same, viz. contagion, 
or inoculation and infection : their tendencies prove alike de- 
structive in the natural form, but modified and mitigated in both 
instances by inoculation; both diseases likewise admit of division 
into distinct and confluent varieties, the latter, as compared with 
the former, being for the most part of a malignant and dangerous 
character. 
Mr. Simonds’ work will supply a want created in our veterinary 
literature through the introduction of a disease which, if known to 
any extent in this country before, was too little heeded to arouse 
any effective medical attention to it. On the continent of Europe, 
variola ovina has long been known, from some parts, indeed, has 
hardly ever been found to be absent; and this has given rise to the 
production of “ Treatises” and “ Memoirs” on the subject, consti- 
tuting, in the lout ensemble , a mine of information to which we can 
sanguinely and safely refer any of our readers who may feel de- 
sirous of prosecuting their inquiries into the nature, causes, and 
effects of this, to us, novel and fearful disease. 
The writings of Sacco, Yitet, Hurtrel D’Arboval, Lebel, Delafond, 
Miquel, and Thomieres, have all thrown more or less light upon the 
subject, and Mr. Simonds has, for the most part, availed himself of 
these excellent authorities. He appears to have perused pretty well 
the whole of them. Nor has he rested satisfied with perusal ; but 
has, as far as his opportunities would let him, put their assertions and 
opinions to the test of actual observation and experiment. Thus, 
through the researches and experiments of Mr. Simonds, are we 
now in the possession of an English work on Sheep-pox ; and for 
it he has our thanks, and will receive the thanks of the profession 
