▁been ▁long ▁known ▁to ▁she ph erd s , ▁though ▁question ed ▁by ▁natural ists , ▁that ▁the ▁pro gen y ▁of ▁the ▁cross ▁between ▁the ▁sheep ▁and ▁go at ▁is ▁fert ile . ▁Bre eds ▁of ▁this ▁mixed ▁race ▁are ▁numerous ▁in ▁the ▁north ▁of ▁Europe ." ▁Nothing ▁appears ▁to ▁be ▁known ▁of ▁such ▁hy br ids ▁either ▁in ▁Sc and in avia ▁or ▁in ▁Italy ; ▁but ▁Professor ▁G igli oli ▁of ▁Florence ▁has ▁kindly ▁given ▁me ▁some ▁useful ▁references ▁to ▁works ▁in ▁which ▁they ▁are ▁described . ▁The ▁following ▁extract ▁from ▁his ▁letter ▁is ▁very ▁interesting : ▁" I ▁need ▁not ▁tell ▁you ▁that ▁there ▁being ▁such ▁hy br ids ▁is ▁now ▁generally ▁accepted ▁as ▁a ▁fact . ▁Buff on ▁( Supp lement s , ▁tom . ▁i ii . ▁p . ▁ 7 , ▁ 1 7 5 6 ) ▁obtained ▁one ▁such ▁hy brid ▁in ▁ 1 7 5 1 ▁and ▁eight ▁in ▁ 1 7 5 2 . ▁S anson ▁( La ▁Culture , ▁vol . ▁vi . ▁p . ▁ 3 7 2 , ▁ 1 8 6 5 ) ▁mentions ▁a ▁case ▁observed ▁in ▁the ▁V os ges , ▁France . ▁Geoff . ▁St . ▁H ila ire ▁( H ist . ▁Nat . ▁Gén . ▁des ▁reg . ▁org ., ▁vol . ▁i ii . ▁p . ▁ 1 6 3 ) ▁was ▁the ▁first ▁to ▁mention , ▁I ▁believe , ▁that ▁in ▁different ▁parts ▁of ▁South ▁America ▁the ▁ram ▁is ▁more ▁usually ▁crossed