Secondly, that although an English carrier or a short-faced tumbler differs immensely in certain characters from the rock-pigeon, yet that by comparing the several sub-breeds of these two races, more especially those brought from distant countries, we can make, between them and the rock-pigeon, an almost perfect series; so we can in some other cases, but not with all the breeds.
Bigarrenik, mezulari ingelesa eta itzulipurdikari aurpegimotza ezaugarri askotan haitz-usoa ez bezalakoak diren arren, hala ere arraza bion azpiarrazak, bereziki herrialde urrunetatik ekarriak, konparatuz, ia serie hobezina egin genezakeela haien eta haitz-usoaren artean;