246 Breeding In and Tn. 
of the same race, though it may be stationary as to place 
where it is kept, the best and most promising (of both 
sexes) for breeders which should have no intercourse 
with inferior sheep, would effect the purpose. I could 
enumerate many instances (some very recent) occurring 
under my own observation and that of others, in my own 
and neighbours flock’s, where interchanging our sheep 
with distant farmers, for one or two seasons, has, ina most 
evident degree, materially improved the subjects of such 
changes, in fleece and every other respect. But where 
the parent stock is confined to a few, kept for a length 
of time on the same spot; I never could, with all the 
care I could take, prevent degeneracy in the full-blood- 
ed progeny of the direct line, after a few descents, the 
number of such descents being uncertain ; and not go- 
verned, as to this effect, by any fixed rules. ‘The dete- 
rioration frequently, but not always, shews itself in the 
third or fourth descent; when, in the same number, 
the blood, size and fleece, brought up by judicious 
crossings, are approaching to perfection. It has been 
almost invariably so, in cases falling under my obser- 
vation ; and these have been numerous. To some of 
those who are of a contrary opinion, I am ready to yield, 
in doubtful, speculative, or abstract questions; but I 
cannot, in this, be so compliant, as to abandon the re- 
peated evidence of my senses. 
RicHarp PETERS. 
June 8th, 1810. 
POOLE PL APL TE 
I never heard of any difficulties or accidents in yeaning, oc- 
curring with Tunis ewes. They are broad and roomy im the, 
quarters ; stand wide on their hind legs, and, bemg strong 
and healthy, they have easy births. R. P. 
