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An individual having different alleles at one or more loci in homologous chromosome segments.

Contracts. There are two kinds of carriers, namely, common carriers, (q. v.) who have been considered under another head; and private carriers. These latter are persons who, although they do not undertake to transport the goods of such as choose to employ them, yet agree to carry the goods of some particular person for hire, from one place to another.

In such case the carrier incurs no responsibility beyond that of any other ordinary bailee for hire, that is to say, the responsibility of ordinary diligence. 2 Bos. & Pull. 417; 4 Taunt. 787; Selw. N. P. 382 n.; 1 Wend. R. 272; 1 Hayw. R. 14; 2 Dana, R. 430; 6 Taunt. 577; Jones, Bailm. 121; Story on Bailm, 495. But in Gordon v. Hutchinson, 1 Watts & Serg. 285, it was holden that a Wagoner Who carries goods for hire, contracts,the responsibility of a common carrier, whether transportation be his principal and direct business, or only an occasional and incidental employment.

To bring a person within the description of a common carrier, he must exercise his business as a public employment; he must undertake to carry goods for persons generally; and he must hold himself out as ready to engage in the transportation of goods for hire, as a business; not as a casual occupation pro hac vice. 1 Salk. 249; 1 Bell's Com. 467; 1 Hayw. R. 14; 1 Wend. 272; 2, Dana, R. 430. See Bouv. Inst. Index, b. t.