. A history of British birds, indigenous and migratory: including their organization, habits, and relations; remarks on classification and nomenclature; an account of the principal organs of birds, and observations relative to practical ornithology .. . , and then measuring two inchesin length, Fig. 112, has a very diffe-rent appearance, being evidently com-posed of equal rings, each, however,having a contraction, or two oppositenotches, in the middle, in front, aswell as behind. Now, if the rings begradually brought together, we findthat one overlaps the other in a pecu-liar manner, so as to
. A history of British birds, indigenous and migratory: including their organization, habits, and relations; remarks on classification and nomenclature; an account of the principal organs of birds, and observations relative to practical ornithology .. . , and then measuring two inchesin length, Fig. 112, has a very diffe-rent appearance, being evidently com-posed of equal rings, each, however,having a contraction, or two oppositenotches, in the middle, in front, aswell as behind. Now, if the rings begradually brought together, we findthat one overlaps the other in a pecu-liar manner, so as to produce the appearance represented byFig. 111. Fig. 113 represents two rings, the membrane be-tween which has been removed. The ring marked 1, is seento be narrowed in the middle, and the portion of it to theright is plain or flat, while that to the left has a slight ridgerunning along its centre. The ring marked 2 is similar, buthas the plain portion to the left, and that with the ridge placed to the riofht. In Figf. 114, these two ringsare brought close toge-ther, when it is seenFio. 113. Fig. 114. that No. 1 has over- lapped No. 2 on the right side as far as the ridge, while No. 2has overlapped No. 1 on the left side to the same extent. No. 1. Fig. lU.
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Keywords: ., bookcentury1800, bookidhistoryofbritish02macg, booksubjectbirdsg
