Engelmann, Annali of the Archaeological Institute at Rome (1874); O.
slope of the Cascades the red fir ceases to be the dominant tree, and between this elevation and the region of perpetual snow, on a few of the highest peaks, rise a succession of forest zones containing principally: (1) yellow pine, red and yellow fir, white fir and cedar; (2) lodgepole pine, white pine, Engelmann spruce and yew; (3) subalpine fir, lovely fir, noble fir, Mertens hemlock, Alaska cedar and tamarack; (4) white-bark pine, Patton hemlock, alpine larch and creeeping juniper.
Other species include - western red cedar, Engelmann spruce, alpine fir, whitebark pine, limber pine, alpine larch and occassionally western white pine.
Engelmann in Roscher's Lexikon der Mythologie; and O.
See Schneegans, Historisch-topographische Beschreibung Kreuznachs and seiner Umgebung (7th ed., 1904); Engelmann, Kreuznach and seine Heilquellen (8th ed., 1890); and Stabel, Das Solbad Kreuznach fiir Arzte dargestellt (Kreuznach, 1887).
Usnea, Cladonia, Physcia, Parmelia, Calicium, many species of Lecidea, &c., Trentepohlia (Chroolepus) umbrina in many species of Verrucaria, Graphidieae and Lecidea; Palmella botryoides in Epigloea; Pleurococcus vulgaris in Acarospora, Dermatocarpon, Catillaria; Dactylococcus infusionum in Solorina, Nephromia; After Sachs, from De Bary's Vergleichende Morphologie and Biologie der Pilze, Mycetozoen and Bacterien, by permission of Wilhelm Engelmann.
After Sachs, from De Bary's Vergleichende Morphologie and Biologie der Pilze, Mycetozoen and Bacterien, by permission of Wilhelm Engelmann.
phologie permiss on und Biologic Wilhelm deer Pilz Engelmann.
The paraphyses; (which may be absent entirely in the Pyrenolichens) are erect, colourless filaments which are After Tulasne, from De Bary's Vergleichende Morphologie and Biologie der Pilze, Mycetozoen and Bacterien, by permission of Wilhelm Engelmann.
After Bornet, from De Bary's Vergleichende Bacterien, by permission of Wilhelm Engelmann.
(A, C, E, F, G, H, K, L, M 1 M 2 from Engler and Prantl, Pfianzenfamilien,by permission of Wilhelm Engelmann; B 1, N from Vines, Students' Text Book of Botany, by permission of Swan Sonnenschein and Co.; B 2, D.
(A, B, C, D, E, H, L, M, P, from Engler and Prantl, by permission of Wilhelm Engelmann; F, G, K, 0, from Oltmanns, by permission of Gustav Fischer; Q, from by permission of the Clarendon Press; N 1, N 2, from Hauck, by permission of Eduard Kummer.) the brown colouring matter which is added to chlorophyll is identical with phycophaein; two varieties of it have been termed phycopyrrin and peridinine.
By an ingenious method devised by Engelmann, it may be shown that the greatest liberation of oxygen, and consequently the greatest assimilation of carbon, occurs in that region of the spectrum represented by the absorption bands.
The experiment of Engelmann referred to deserves to be mentioned here, if only in illustration .of the use to which algae have been put in the study of physiological problems. Engelmann observed that certain bacteria were motile only in the presence of oxygen, and that they retained their motility in a microscopic preparation in the neighbourhood of an algal filament when they had come to rest elsewhere on account of the exhaustion of oxygen.
focal length, at the private observatory of Dr Engelmann, Leipzig.
- Dr Engelmann's piece and the declination circle by another (looking up the per forated polar axis), and where he can also set the telescope to any hour angle by one wheel, or to any declination by a second, with the greatest ease.
The principal trees, after the yellow and lodgepole pines, are the red-fir, so-called hemlock and cedar, the Engelmann spruce, the cottonwood and the aspen (Populus tremuloides).
The chief varieties of timber are the red fir, Engelmann's spruce and yellow pine.
Considerable advances in our knowledge of the various chromogenic bacteria have been made by the studies of Beyerinck, Lankester, Engelmann, Ewart and others, and have assumed exceptional importance owing to the discovery that Bacteriopurpurin - the red colouring matter contained in certain sulphur bacteria - absorbs certain rays of solar energy, and enables the organism to utilize the energy for its own life-purposes.
Engelmann showed, for instance, that these red-purple bacteria collect in the ultra-red, and to a less extent in the orange and green, in bands which agree with the absorption spectrum of the extracted colouring matter.
W.) split by means of energy derived from the oxidation of nitrogen, but apart from the fact that none of these processes can proceed until the temperature rises to the minimum cardinal point, Engelmann's experiment shows that in the purple bacteria rays are used other than those employed by green plants, and especially ultra-red rays not seen in the spectrum, and we may probably conclude that " dark rays " - i.e.
Engelmann, Scriptores Latini (8th ed., by E.
Combined from three figures by Wladimir Schewiakoff in Morphologisches Jahrbuch, xv., 1889, by permission of Wilhelm Engelmann.
Schewiakoff, simplified from a coloured plate in Morphologisches Jahrbuch, xv., r889, by permission of Wilhelm Engelmann.
Engelmann at Leipzig.
Waitz, Deutsche Verfassungsgeschichte (1844, ff.); P. Viollet, Histoire du droit francais (3rd ed., 1905); Engelmann, Geschichte der Leibeigenschaft Russland; Kluchevsky, Lectures on the History of Russia (in Russian), ii.
Engelmann, Scriptores Graeci (1881); G.
For the literature of the subject, see Engelmann, Biblioth.
Observed originally by Engelmann in bacteria, by Stahl in myxomycetes, and by Pfeffer in ferns, mosses, &c., it has now become recognized as a widespread phenomenon.
263; Engelmann, " Chemiotaxis of Oxygen for Bacteria," Arch.
Paulsen, The German Universities, pp. 344-345)1; (vii.) examinations of several hundred candidates at a time cannot be rationally conducted so as to be equally fair to the individuality of all candidates; the individual test is the only complete one (it is admitted that examinations on a large scale necessarily involve a margin of error; but this error may be reduced to a minimum, especially by a combination of oral and practical with written work); (viii.) the multiplicity of school examinations required for different reasons produces confusion in our secondary education (there is a growing tendency to admit equivalence of " schoolleaving " and entrance examinations; thus entrance examinations of Oxford, Cambridge and London, and the Northern Universities Joint Board are interchangeable under certain conditions); (ix.) the multiplicity of examinations tends to " underselling " (the success of the London examinations in medicine proves that a high standard attracts candidates as well as a low one; possibly intermediate standards may be killed in the competition; it is by no means obvious that a uniform system of examinations would conduce to efficiency); (x.) examinations produce physical damage to health, especially in the case of women-students (on this point more statistical evidence is needed; see, however, Engelmann quoted by G.
The tube is cylindrical, of riveted steel plate, graduated in thickness from the centre to its extremities, and bolted by very powerful flanges to a strong short cast-iron central tube, in which, as in Dr Engelmann's telescope (fig.
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