A Year of Costa Rican Natural History

כריכה קדמית
Macmillan, 1917 - 577 עמודים
 

מהדורות אחרות - הצג הכל

מונחים וביטויים נפוצים

קטעים בולטים

עמוד 340 - ... running about, especially over the young leaves. If one of these be touched, or a branch shaken, the little ants swarm out from the hollow thorns and attack the aggressor with jaws and sting. They sting severely, raising a little white lump that does not disappear in less than twenty-four hours. " These ants form a most efficient standing army for the plant...
עמוד 491 - STEPHENS (John L.) Incidents of Travel in Central America, Chiapas, and Yucatan. Illustrated. 2 vols. 8vo. cloth. New York, 1860. 600 1764 STEPHENS (John L.) Incidents of Travel in Yucatan.
עמוד 176 - ... afforded only one specimen each and their position was such that I was unable to correctly identify them, but I am quite confident that they are not new. The new Navicula is extremely small and very delicately marked, and I fortunately have two specimens. I should say that there were at least 500 diatoms on the small leg of this larva. The most of these are forms that grow attached by a transparent jelly-like stipe; but several of them are free and free-moving — for example, the different species...
עמוד 217 - ... proportionally, than in other Agrioninae. The space between the leaf of a bromeliad and the leaf next without decreases downward, and if Mecistogaster's eggs are deposited in the plant tissue in or near the contained water, in accordance with the general habit of the Zygoptera, it would often be necessary for the female to reach far down into the crevices possibly too narrow to admit of the entrance of her thorax and wings.
עמוד 491 - GEOGRAPHIE PHYSIQUE: RESULTATS D'UN VOYAGE DANS LES ETATS DE COSTA RICA ET DE NICARAGUA, EXECUTE PENDANT LES ANNEES 18461848.
עמוד 216 - M. mcdestus is no longer, proportionally, than in other Agrioninae. The space between the leaf of a bromeliad and the leaf next without decreases downward, and if Mecistogaster's eggs are deposited in the plant tissue in or near the contained...
עמוד 493 - Central-America mit besonderer Berücksichtigung der Naturverhältnisse und der Frage der deutschen Auswanderung und Colonisation. Reisestudien und Skizzen aus den Jahren 1853 und 1854.
עמוד 44 - In reply to remarks from Canon Fowler and others, Dr. Bennett stated that the male beetles use their cephalic horns in fighting with one another, as well as for puncturing the bark of vines in order to bring about a flow of the sap upon which they feed.
עמוד 491 - South-Sea performed by John Cockburn, and five other Englishmen, who were taken by a Spanish Guarda-Costa in the John and Jane, Edward...
עמוד 322 - Hut it is wholly erroneous to apply the descriptions of the Atlantic slope to the Pacific. There the divisions into seasons are as well marked as in any northern country, only the basis of the division is the amount of precipitation and not the amount of heat. The smaller vegetable forms often dry up completely, so that grass lands show only brown stubble and roadside thickets bare branches. As Werckle points out, many...

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