Proceedings of the American Academy of Arts and Sciences, Volúmenes75-76Metcalf and Company, 1944 Vol. 12 (from May 1876 to May 1877) includes: Researches in telephony / by A. Graham Bell. |
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Página 59
... wing : length , 12.5-20 mm .; width , 4.2-6 mm . Costal area broader than in fore wing and not so markedly concave ; venation as in the fore wing . The hind wing appears to lack a pterostigma ; its absence in the holotype ( hind wing ) ...
... wing : length , 12.5-20 mm .; width , 4.2-6 mm . Costal area broader than in fore wing and not so markedly concave ; venation as in the fore wing . The hind wing appears to lack a pterostigma ; its absence in the holotype ( hind wing ) ...
Página 63
... fore wing. the fore wing ; 2A terminating on wing margin ; cross - veins as numerous as in the fore wing , not in gradate series . Genotype : Permoberotha villosa Tillyard . This is the only species of the genus known at present ...
... fore wing. the fore wing ; 2A terminating on wing margin ; cross - veins as numerous as in the fore wing , not in gradate series . Genotype : Permoberotha villosa Tillyard . This is the only species of the genus known at present ...
Página 72
... wings extend along the abdomen , and one fore wing , preserved only to about the middle , lies at right angles to the body . This specimen therefore shows part of a fore wing and at least one complete hind wing , though the proximal ...
... wings extend along the abdomen , and one fore wing , preserved only to about the middle , lies at right angles to the body . This specimen therefore shows part of a fore wing and at least one complete hind wing , though the proximal ...
Contenido
Papers on PostWar Problems A N WHITEHEAD and others | 1 |
The Lower Permian Insects of Kansas Part 9 F M CARPENTER | 55 |
Some Factors in the Defense Mechanism Against Reinfection with Trypanosoma Lewisi | 84 |
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Términos y frases comunes
Acad accepts Fellowship ADDINGTON BRUCE Amer apparatus ARTICLE AVIVO axis Belmont Boston Brookline caesium Cambridge Cambridge carboloy Carboniferous cent Chairman chap Charles Class coil Committee Comparative Zoology Conn Corresponding Secretary costal margin Council cross-veins curved distal Edward elected figure fore wing Foreign Honorary Members forked Frederick galvanometer genus George gyromagnetic ratios HARLOW SHAPLEY Harvard Henry high pressure hind wing holotype indium insects Jamaica Plain John kg/cm² Martynov Martynoviidae material measurements MEETING The Academy Meganeura Megasecoptera ment mid-wing Midco Museum of Comparative Neuroptera organization P. M. One Thousand P. M. The President P. W. Bridgman Permanent Science Fund Permian piezometer piston powder present Proc Professor Protodonata Protorthoptera pterostigma Robert rotor Rumford saltpeter scattering chamber SECTION species specimens substances Table Tillyard tion transition trypanosomes vein venation volume compression volume decrement William York