Agricultural zoology

The present volume of the Thaer Library was undertaken with the intention of providing agricultural colleges with a condensed review of the entire animal kingdom, but treating i...

FIG. PAGE 1. Schematic Longitudinal Section of the Human Body 4 2. Human Skeleton 7 3. Skeleton of an Ox 9 4. Bending of the Arm by Contraction of the Biceps Muscle 10 5. Diagra...

The bones are usually surrounded by flesh. This consists of a number of different pieces united together by a delicate, elastic, fibrous mass (connective tissue). The different...

All teeth in which the entire surface of the crown is covered by enamel only are known as _simple teeth_, while those into which the enamel only penetrates in more or less deep...

The =Hamster= (_Cricetus frumentarius_).—The Hamster has cheek-pouches, and a very short, thick, but short-haired tail. It attains the size of the brown rat. Bright yellowish br...

The =Cuckoo= (_Cuculus canorus_, Fig. 34). Fourteen inches long, tail eight inches. The yellowish beak is slightly curved; feet yellow. Back blue-grey in old birds, brownish in...

Usually swimming feet. Legs tolerably long, adapted for wading (Fig. 45). Wings long, pointed. Beak laterally compressed. Young nestlings (p. 51). Breed in larger or smaller flo...

The only destructive form is the =Corn Ground Beetle= (_Zabrus gibbus_, Fig. 69); short, thick-set; back black; belly, legs, and antennæ dark brown. Larva cylindrical, slightly...

The =Gall Weevils= (_Ceutorhynchus_) are very small beetles with thick-set bodies. In a state of rest the proboscis is folded back into a ventral furrow, situated between the fo...

The =Lace Flies= (_Hemerobidæ_) when at rest are covered as with a roof by their fore and hind wings, which are almost alike, clear as glass, and finely veined. Head tolerably l...

Sucking mouth-parts, forming a “proboscis” made up of the two very long maxillæ, spirally rolled up under the head when not in use (Fig. 92), and adapted for sucking honey. Ther...

_Moth_: About ⅝ of an inch long; span of wings 1¾ inches. Dark grey, mixed with a reddish tint, and darkly marbled. About the middle of the fore wing there is a very obvious gam...

Slenderly built, with long, thin legs. An elongated piercing proboscis in the female. The male with feebly developed mouth-parts, and feather-like antennæ. Both sexes suck up wa...

The =Ribbon-footed Corn Fly= or =Yellow Haulm Fly= (_Chlorops tæniopus_), nearly one-sixth of an inch long, shining yellow; the antennæ are black, and there are three longitudin...

────────────────────┬──────────────────┬──────────────────┬────────────────── SPECIES. │ FLY. │ EGG. │ MAGGOT. ────────────────────┼──────────────────┼──────────────────┼───────...

Ticks are generally rather larger than the mites of the preceding family. The skin is tough as leather. The front part of the body is covered by a hard shield above; the skin of...

In the sexual condition this lives as a minute worm (male one-seventeenth, female one-eighth to one-sixth of an inch long), the so-called “intestinal trichina,” in the gut of hu...

This second species of the genus _Heterodera_ develops much like the beet eelworm, living like it on the roots of plants, but more deeply within them, so that the body of the fe...

This sub-kingdom, to which oysters, snails, cuttle-fish, etc., belong, includes unsegmented animals devoid of internal skeleton, and with bilaterally symmetrical (p. 16) embryo,...

“An important work, ‘The Principles of Agricultural Practice,’ has just been published by Messrs. Chapman & Hall. It comes from the pen of the most experienced teacher of agricu...