Annual Report |
Между кориците на книгата
Резултати 1 - 5 от 47.
Страница 32
... usually falls to twenty and twenty - five below . In- deed , there has been but one February with a minimum as high , and no February with so high a maximum temperature , for the past eight years . TABLES . The following are the mean ...
... usually falls to twenty and twenty - five below . In- deed , there has been but one February with a minimum as high , and no February with so high a maximum temperature , for the past eight years . TABLES . The following are the mean ...
Страница 43
... usually too dry.-I. E. Heaton , Fremont . " Season very backward , corn planting not done yet and not much corn up ; the crop gen- erally looks weakly ; chinch bugs plenty . " - C . Shieldstream , Palmer . " May has been cold , with a ...
... usually too dry.-I. E. Heaton , Fremont . " Season very backward , corn planting not done yet and not much corn up ; the crop gen- erally looks weakly ; chinch bugs plenty . " - C . Shieldstream , Palmer . " May has been cold , with a ...
Страница 78
... usually given to it . That is , I find that in order to manifest itself unequivocally in tree growth , the lime percentage should not fall below one - tenth of one per cent in the lightest sandy soils ; in clay loams , not below one ...
... usually given to it . That is , I find that in order to manifest itself unequivocally in tree growth , the lime percentage should not fall below one - tenth of one per cent in the lightest sandy soils ; in clay loams , not below one ...
Страница 85
... usually occur in groups , some of which contain hundreds , yes thousands , of distinct species or kinds . If we become familiar with any one representative member of such a group , we can through inference place its allies either among ...
... usually occur in groups , some of which contain hundreds , yes thousands , of distinct species or kinds . If we become familiar with any one representative member of such a group , we can through inference place its allies either among ...
Страница 86
... Usually the natural enemies of any one insect , together with the climatic conditions , are sufficient to keep it within proper bounds . Occasionally , however , through various causes , these fail , and an insect becomes sufficiently ...
... Usually the natural enemies of any one insect , together with the climatic conditions , are sufficient to keep it within proper bounds . Occasionally , however , through various causes , these fail , and an insect becomes sufficiently ...
Други издания - Преглед на всички
Често срещани думи и фрази
animal average barometer bees beetles beets Blue breed bugs bushels per acre calves Cass county cattle cent Chinch-bug clear days clover color condition corn corn-stalk Crete crop cultivation Custer county Dinsmore disease eggs ensilage experience fair farm farmers feed field fish fruit Furnas Gage county germ Grand Island grass Greatest daily range ground Hay Springs hogs Holt county horses humidity injurious insect July June June 27 kind larvæ Lincoln Loup Lowest M. E. O'Brien mean temperature miles milk month movement of wind Nebraska Nebraska City number of days oats observed pasture pigs Plattsmouth pond pounds prairies precipitation in inches Premiums rain range of temperature ripened Saline county season seed Seward county silo soil sown species spring stalks STATION Stromsburg sugar swollen TEMP tion vegetated weather Weeping Water wheat winter worms yield
Популярни откъси
Страница 15 - ... to conduct original researches or verify experiments on the physiology of plants and animals ; the diseases to which they are severally subject, with the remedies for the same ; the chemical composition of useful plants at their different stages of growth; the comparative advantages of rotative cropping as pursued under a varying series of crops; the capacity of new plants or trees for acclimation; the analysis of soils and water; the chemical composition of manures, natural or artificial...
Страница 15 - That it shall be the object and duty of said experiment stations to conduct original researches or verify experiments on the physiology of plants and animals ; the diseases to which they are severally subject, with the remedies for the same ; the chemical composition of useful plants at their different stages of growth ; the comparative advantages of rotative cropping as pursued under a varying series of crops ; the capacity of new plants or trees for acclimation ; the analysis of soils and water...
Страница 15 - Resolved, That the thanks of this association are due, and are hereby tendered, to the Fire Department of the city of Detroit, for the.
Страница 88 - ... thighs a little dilated. Length less than three-twentieths of an inch. I took a single specimen on the Eastern Shore of Virginia.
Страница 88 - ... and the head is relatively broader and more rounded, while the joints of the body are subequal, the prothoracic joint being but slightly longer than any of the rest. The red color soon pervades the whole body, except the first two abdominal joints, which remain yellowish, and the members, which remain pale. After the...
Страница 88 - ... extend almost across the two pale abdominal joints, which are now more dingy, while the general color of the abdomen is dingy gray; the body above is slightly pubescent, the members are colored as in the mature bug, the three-jointed tarsus is foreshadowed, and the dark horny spots at the tip of the abdomen, both above and below, are larger.
Страница 88 - After the second molt (fig. 3,/) the head and thorax are quite dusky; the abdomen duller red, but the pale transverse band is still distinct; the wing pads become apparent; the members are more dusky; there is a dark-red shade on the fourth and fifth abdominal joints, and ventrally a distinct circular dusky spot covering the last three joints. In the last-stage larva or nymph (fig. 3, g), sometimes called the ',pupa...
Страница 122 - She first spreads out to their full extent all of her legs, braces them, and then draws her beak or rostrum to as nearly a perpendicular position as possible, then by gnawing and with a twisting motion soon works her snout into the young fruit until it is buried a trifle above the bases of the antennae, the latter being held close against and directed upward along the rostrum upon the head while the hole is being made. She now draws out her beak and deliberately turns about, and after a few preliminary...
Страница 128 - Whenever possible, larvae (;'. e. , grubs, caterpillars, maggots, etc.) should be packed alive in some tight tin box — the tighter the better, as air-holes are not needed — along with a supply of their appropriate food sufficient to last them on their journey ; otherwise, they generally die on the road and shrivel up. Send as full an account as possible of the habits of the insect respecting which you desire information ; for example, what plant or plants it infests ; whether it destroys the...
Страница 90 - I thought that a good opportunity and an inviting field was presented to purposely spread a disease — an act not usually considered a very kind one to engage in, and one not to be recommended to physicians. This was exceedingly simple, as all that was necessary was to gather a number of the diseased bugs, put them into tight-fitting tin boxes, and mail them to regions infested by chinch bugs.