Annals of the New York Academy of Sciences, Volume 6

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New York Academy of Sciences., 1892 - Science
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Page 351 - Cygni was frequently photographed by RUTHERFURD. Six of the plates were carefully measured under his direction with his improved micrometric apparatus provided with a glass scale for measuring the distances. The method of measurement was precisely the same as that employed in the case of the Pleiades plates, taken in 1872 and 1874,* and but very few changes have been made in the method of reduction. The dates and other particulars connected with the seveml plates are collected in table I., at the...
Page 1 - STARS. — Our readers will doubtless be interested by the following extract from the ' Annals of the New York Academy of Sciences,' vol. vi. : — " On November 13th, 1890, Lewis M. Rutherfurd, LL.D., of New York City, presented to the Columbia College Observatory all his photographic negatives taken between the years 1858 and 1878. Many of the plates had been measured, and these measures were included in the gift. The measures fill some thirty quarto volumes. Several years ago (1884) Mr Rutherfurd...
Page 262 - Shortly before the central star reached the edge of the plate, the clock was again started, and the central star was allowed to impress itself once more.
Page 59 - ... sides parallel, broadly arcuate or subangulate just before the middle, very feebly sinuate just behind the apical angles, feebly convergent and nearly straight to the base; base arcuate and equal to the apex in width; apical angles right, slightly blunt, not prominent; basal angles broadly obtuse. Elytra about two and two-thirds times as long as the prothorax, and, in the middle, one-half wider than the latter, about twice as long as wide; humeri not at all exposed; sides broadly arcuate, apex...
Page 238 - Anemone and l1ulsatilla distinct than for separating Hepatica, but I find no transitions from Pulsatilla to Anemone, and it forms a very natural group of species both as to structure, habit, and geographical distribution throughout the north temperate zone.
Page 370 - San Diego, including Cortes Banks 168 " There are known from the entire region 382 species, belonging to 228 genera. Of these 116 genera, or more than half, are also found in the Atlantic ocean, and thirty-two species are found both in the Atlantic and in the Pacific. The genera having species in both oceans practically all belong to one of three classes : First, Tropical genera; second, Arctic genera, whose species are distributed throughout the Arctic seas; third, Pelagic and other genera having...
Page 58 - Rather slender, convex and subcylindrical, black throughout and strongly shining, glabrous. Head rather sparsely punctate, moderately coarsely so toward apex ; antennae robust, nearly as long as the head and prothorax, the third joint four times as long as wide and fully as long as the next two together, last three joints distinctly dilated forming a club, the ninth and tenth strongly transverse. Prothorax quadrate, very nearly as long as...
Page 61 - ... sinus and broadly rounded angles ; base almost truncate, with obtuse angles ; surface minutely, rather sparsely punctulate, more strongly but still not very closely so laterally, the marginal bead extremely fine, only slightly arcuate at base ; scutellum moderate, polished ; elytra not quite one-half longer than wide, two and one-half times as long as the prothorax...
Page 247 - Readily distinguishable from the European A. nemorosa by its slender habit, slender petioles, less lobed divisions of the involucral leaves, paler green of the foliage and smaller flowers." (Dr. NL Britton.) The western limit of this species as shown by our herbarium specimens is Wingham, Ont. Note. See Revision of the genus Anemone by Dr. NL Britton in Annals of the New York Academy of Sciences, Vol. VI. pp. 215-238.
Page 238 - Achenia glabrous, pubescent, or woolly, with short, subulate, not plumose styles; stamens all antheriferous ; involucre remote from the flower or flowers, 1-3-leaved, the leaves sessile or petioled ; radical leaves various. 2. Anemone. Achenia pubescent, short-beaked; stamens all antheriferous; involucre approximate to the flower, 3-leaved, calyciform, the leaves sessile; radical leaves petioled, 3-lobed or sometimes 5— 7-lobed 3.

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