GLOSSARY. 



545 



between the leg (crus), and the tarso-raetatar- 

 sus (shank). With few exceptions among cer- 

 tain Ilaptorcs, it always bends backward ; the 

 knee always has its convexity forward. 



Heel-pad, ?(,. (115.) Fterna; tuber (which see). 

 The posterior portion of pclma, immediately 

 under the foot-joint, and frequently promi- 

 nent. (But heel-pad should not be nsed 

 in this connection, since the heel {calcaneus) 

 is at the top of the tarsus, and not at the 

 bottom where the heel-pad lies.) (115.) 



Hemi- (m coviposifiou). Semi- ; demi- ; half. 



Hepat'ic, a. Pertaining to the liver ; as, Jie- 

 patic artery, hepatic secretion. 



Heteroge'neous, a. Of different or dissimilar 

 nature ; of mixed or miscellaneous character. 



Hex'agon, n. Figure of six sides and six 

 edges. 



Hexag'onal, a. Having six sides and edges. 



Hiber'nal, a. Pertaining to the winter time. 

 (Neither this nor oistival are much used, al- 

 though vernal and autumnal are continually 

 employed. ) 



Hind-neck, n. (48.) See Cervix. 



Hind-toe, n. (129.) See Hallux. 



Hinder Parts. (8.) See Ur^eum. 



Hip, n. Joint of femur with pelvis ; projec- 

 tion formed by femoral trochanter over the 

 joint. 



Hirsute', a. Hairy ; rather shaggy, as the 



Formation of tissue. 



Minute anatomy ; history of 



feet of a grouse. 



Histog'eny, n. 



Histol'ogy, n. 

 tissue. 



Histon'omy, n. Laws of formation of tissue. 



Hoar'y, a. Of a pale silvery-gray. 



Holorhi'nal, a. Having the nasal bones con- 

 tiguous. 



Homogene'ity, 7t. Sameness; structural simi- 

 larity. 



Homoge'neous, a. Of the same kind or na- 

 ture. Opposed to heterogeneous. A homo- 

 geneous group contains only structurally re- 

 lated forms. 



Homolog'ical, ) a. Structurally related ; hav- 



Homol'ogous, \ ing structural attinity. Op- 

 posed to analogous, which implies similarity 

 of appearance, purpose, or use without corre- 

 sponding affinity. 



Homol'ggy, n. Structural affinity, generally 

 implying genetic relationship. Opposed to 

 analogy, or mere resemblance. 



Homotyp'ical, a. ' Of the same type of struc- 

 ture. 



Hojiot'ypy, n. A particular kind of homol- 

 ogy- 



Hor'notine, a. or n. Yearling ; a bird of the 

 year. 



Hu'meral, a. Pertaining to the humerus, or, 

 more generally, to the upper arm. 



Hu'merus, n. The upper arm bone ; sometimes 

 the whole upper-arm, from shoulder to elbow. 



Hy'aline, ) a. Transparent, like glass ; said 



Hy'aloid. \ chiefly of the vitreous humor of 

 the eye, and of certain appurtenances of the 

 back chamber of the eye. 



Hy'brid, a. or n. Cross-born between two spe- 

 cies ; mongrel. 



Hybridiza'tion, 71. Cross-fertilization. Pro- 

 duction of hybrids. 



Hy'bridize. To cross and bear mongrel off- 

 spring. 



Hy'oid, ) a. Pertaining to the os hyoides or 



Hyoid'ean, ) tongue-bone, or, more genei'- 

 ally, to the tongue itself. 



Hypapoph'y.sis, n. Bony process from the 

 under side of a vertebra, sometimes very large, 

 as in the loon. 



Hyper- {in composition). Same as super- (which 

 see). 



Hyperbo'rean, a. Northern ; boreal. 



Hyperchrom'atism, n. State of unusually in- 

 creased or intensified coloration. 



Hyper'trophy, n. Inordinate enlargement of 

 a part or organ, due to excessive nutrition. 

 The opposite of atrophy, or the wasting away 

 of an organ through deficient nutrition. 



Hypo- {in composition). Same as suh- (which 

 see). 



Hypochon'drium, «. The flank. (Oftenerused 

 in the pluial, hypochondria, flanks.) (67.) 



Hypodac'tylum, ?i. Soles of the toes. (118.) 



Hypogas'tric, a. Under or behind the belly. 

 (Little used). 



Hypognath'ous, a. Having the under man- 

 dible longer than the upper, as the black 

 skimmer. 



Hypopti'lum, n. Supplementary plume, or 

 accessory plume, springing from the same 

 barrel of the main feather. Generally found, 

 but wanting in many families, and always on 

 the quills of the wings and tail. Synony- 

 mous with hyporrhachis as generally used. 



Hypora'dii, n. pi. Barbs of the hypoptilum. 



Hyporrha'chis, 71. Aftershaft ; stem or scape 

 of the supplementary plume. Generally used 

 for the whole of such accessory feather, but 

 best thus restricted. 



Hypoth'e.sis, n. A reasonable presumption or 

 supposition taken as premise of an argument, 

 or as probably true, to account for what is not 

 understood. As it does not necessarily rest 

 upon fact, it has not the weight or dignity of 

 theory. 



Hypothet'ical, a. Reasonably presumptive : 

 logically supposititious ; conditional ; as- 

 sumed without jjroof but with fair probability. 



Identifica'tion, 71. Act or process of deter- 

 mining to what species a specimen or a name 

 belongs ; the determination so made. 



Iden'tify. To determine the name of a speci- 

 men or of a species ; to ascertain the identity 

 of a certain specimen with a name, or name 

 with a certain species. 



IfiNo'BLE, a. Said of hawks lacking the special 

 qualities of those used in falconry. 



Il'eum, n. Lower portion of small intestine. 



Il'i.\c, a. Relating to the ilium, or haunch- 

 bone ; also, to the ileum. 



Il'ium, 7^. Haunch-bone ; principal bone of the 

 pelvis, forming with the ischium and pubis 

 the OS innominatum. 



Im'bricated, a. Fixed shingle-wise with over- 

 lapping edge or end. 



Lmmac'ulate, a. Unspotted ; not marked 

 with different colors. 



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