Bulletin, Issues 198-208The Station., 1913 |
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Common terms and phrases
30 Zero abdomen AMNH antennæ apex aphid Aphis apical apple basal base Ben Davis birds blackish brownish BSNH Buckton cell cent central spot Chermes clasper clasper Fig color Coxæ and legs crossvein cubitus Cubitus forks dark brown darker Davis distad dusky yellow ethyl nitrite Exechia fecundity femora flagellum flexor surface forceps Fore metatarsus fruit gametic glands hairs Halteres Halteres yellow Head Highmoor hind femora hind tibiæ humeri hypopygium Fig indicated class injury insect Ithaca joints Koch Lachnus larvæ lead arsenate legs yellow Length lime-sulphur M₁ Male and female matings Mean winter production mesonotum metanotum middle tibiæ Mycetophila orchard Orono oviduct petiole pleura plots posterior proximad R₁ ranges of setæ reddish scape Schizoneura Sciara scutellum setæ on flexor species specimens spray Station subequal sunscald tarsi tarsus tawny thorax tibia tion trees veins venter Wings grayish hyaline Wings hyaline yellow Fig yellowish
Popular passages
Page v - ... comparative effects on crops of different kinds; the adaptation and value of grasses and forage plants; the composition and digestibility of the different kinds of food for domestic animals; the scientific and economic questions involved in the production of butter and cheese; and such other researches or experiments bearing directly on the agricultural industry of the United States as may in each case be deemed advisable, having due regard to the varying conditions and needs of the respective...
Page iv - ... 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...
Page iv - ... the analysis of soils and water; the chemical composition of manures, natural or artificial, with experiments designed to test their comparative effects on crops of different kinds; the adaptation and value of grasses and forage plants; the composition and digestibility of the different kinds of food for domestic animals; the scientific and economic questions involved in the production of butter and cheese; and such other researches...
Page 146 - The stopcock of the measuring tube of the nitrometer having been opened and the open equilibrium tube having been raised to a higher level, pour into the latter a saturated solution of sodium chloride, until the measuring tube, including the bore of the stopcock, is completely filled. Then close the latter and adjust the equilibrium tube at a low level. Having ascertained that the...
Page 295 - ... we daily rob of an egg, in which case the stimulus for incubation is suspended. Of this we have a familiar example in the common domestic fowl. That the cuckoo actually lays a great number of eggs, dissection seems to prove very decisively. Upon a comparison I had an opportunity of making between the ovarium, or racemus vitellorum, of a female cuckoo, killed just as she had begun to lay. and of a pullet killed in the same state, no essential difference appeared.
Page 453 - Larva. — Body somewhat flattened ; head scarcely two-thirds as wide as the body in the middle ; black, becoming brown in front near the jaws. Body livid brown above; the tubercles black ; paler beneath ; with three pairs of black jointed thoracic legs; no abdominal legs, but an anal prop-leg. The abdominal segments each with a transverse...
Page 244 - Walsh is also quite common within the curled leaves, feeding both on the lice and on the substance of the leaf. A large green Syrphus larva and several Chrysopa larvae also prey upon them.
Page 243 - Killoscale," add the oil directly to the water with a little stirring. One gallon of the miscible oil in 30 to 50 gallons of water will make a mixture, which in. most cases will be strong enough to kill plant lice, if thoroughly applied. FORMULA D.
Page 240 - ... the only care necessary being to see that the wash is put on with sufficient force and thoroughness to penetrate the covering and protecting cottony secretion. If the wash be applied warm, its penetration will be considerably increased.
Page 373 - ... (c) the daughters of a fecund dam may show either high fecundity or low fecundity, depending upon their sire; (d) the proportion of daughters of low fecundity is the same whether the dam is of high or of low fecundity, provided both are mated to the same male.