First- Second Annual Report Upon the Natural History and Geology of the State of Maine: 1861-18621862 |
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First- Second Annual Report Upon the Natural History and Geology of the ... Maine Vista completa - 1862 |
Términos y frases comunes
abdomen abundant anal anal fins antennae anticlinal appear Aroostook Aroostook county beds belt body bones boulders branch branchial Camden caudal Chesuncook lake clay slate color common conglomerate deposit distance dorsal fin east eggs Eolian feet fish formation fossils genera genus geology Gill gneiss Grand lake granite head inches insects island jaws Kennebec land larvæ lateral line ledges legs length limestone locality Maine membrane mica schist miles Moosehead lake moths mountain mouth nearly north-west operculum pectorals Penobscot Penobscot bay Piscataquis river plants pond portion posterior pupa quarry quartz quartz rock Ray formula region river road Salmo scales Schoodic Seboois shore side slender South Thomaston species specimens spines spinous Storer strata stream SUB-CLASS TELEOSTEI surface syenite synclinal Taconic tail teeth terraces thick Thomaston tion trout upper veins ventrals vicinity vomer wings
Pasajes populares
Página 111 - The anterior margin of the dorsal fin is equi-distant between the tip of the snout and the base of the caudal...
Página 174 - Thus a glass jar, tumbler or jam-pot, the top of which has been ground to receive an air-tight glass cover, and the bottom covered with moist white sand, will keep a leaf fresh for a week, and thus a larva in the summer will have to be fed but two or three times before it changes ; and the moth can be seen through the glass without taking off the cover ; or a glass cylinder can be placed over a plant inserted in wet sand, having the top covered with gauze. Dr.
Página 145 - ... state, when the ovipositor is formed), and in being larger, fuller, and duller colored than the males, while the latter often differ in sculpture and ornamentation. In collecting, whenever the two sexes are found united they should be pinned upon the same pin, the male being placed highest. When we take one sex alone we may feel sure that the other is somewhere in the vicinity ; perhaps while one is flying about so as to be easily captured the other is hidden under some leaf, or resting on the...
Página 169 - Moths are extremely sensible of any keenness in the air ; a north or east wind is very likely to keep them from venturing abroad. Different species have different hours of flight. Thus, on a mild and dark November evening, Pcecilocampa populi will occupy from seven to ten o'clock, after which it will make way for Petasia cassinea, which will fly till one or two in the morning.
Página 162 - Most caterpillars change to pupae in the autumn ; and those which transform in the earth should be covered with earth, kept damp by wet moss, and placed in the cellar until the following summer. The collector in seeking for larvae should carry a good number of pillboxes, and especially a close tin box, in which the leaves may be kept fresh for a long time. The different forms and markings of caterpillars should be noted, and they should be drawn carefully together with a leaf of the food-plant, and...
Página 198 - ... soon as the sap begins to flow, these eggs are hatched, and the young lice immediately begin to pump up sap from the tender leaves and shoots, increase rapidly in size, and in a short time come to maturity. In this state it is found that the whole brood, without a single exception, consists solely of females, or rather, and more properly, of individuals which are capable of reproducing their kind. This reproduction takes place by a viviparous generation, there being...
Página 210 - ... impossibility of rearing the animals in communities, and, above all, the difficulty of supplying them with food, leave little or no hope of amendment. Strange as it may seem, spiders have otherwise had, or still have, some economical importance attached to them. ' Medicinally,' says Hentz, ' the web is narcotic, and has been administered internally in some cases of fever with success.
Página 173 - Monthly Magazine," while a steady wind is blowing. In seeking for the larvae we must remember that most of them are leaf miners, and their burrows are detected by the waved brown withered lines on the surface of leaves, and their "//XM*," or excrement, thrown out at one end.
Página 37 - ... comparing them with each other, and thereby combining them into one Thought, or disjoining them as dissimilar or incompatible, belongs to the spontaneity, or self-activity, of the intellect. In the ordinary exercise of our faculties, Intuitions are so intermingled with Thoughts, so quickly pass into them, and are so closely connected with them, that it is difficult to illustrate the distinction between the two by giving an example of an Intuition so isolated and peculiar that there will be no...
Página 199 - Ichneumons, kill larger numbers than we imagine. " When an aphis has received an egg from one of these parasites, it quits its companions and fastens itself by its ungues to the under side of a leaf, when it swells into a globular form, its skin stretched out and dried up, and in a short time the perfect parasite escapes by a circular hole, the mouth of which sometimes remains like a trap door.