The female is apterous, and has a dark-brown plano-convex body; it is found in the proportion of 150 to 200 to one of the male insect.
The eyepiece ab consists of two plano-convex lenses a, b, of nearly the same focal length, and with the two convex sides facing each other.
Joannes de Plano Carpini, a Franciscan monk, was the head of one of the missions despatched by Pope Innocent to call the chief and people of the Tatars to a better mind.
In Venezuela a commission for producing a Plano militar or military map of the country was appointed by General Castro in 1904, but little progress seems to have been made, and meantime we are dependent upon a revised edition of A.
Ehrenberg), a genus of lobose Rhizopoda, characterized by a chitinous plano-convex shell, the circular aperture central on the fiat ventral face, and more than one nucleus and contractile vacuole.
De Plano Carpirti (1247), Thabet; Rubruquis (12J3), Marco Polo (1298), Tebet; Ibn Batuta (1340), Thabat; Ibn Haukal (976), Al Biruni (1020), Odoric of Pordenone (c. 1328), Orazio della Penna (1730), Tibet, which is the form now generally adopted.
These images would be short lines of light; but a plano-cylindrical lens is placed with its axis horizontal just in front of the recording surface.
Two lenses only - a planoconvex and a plano-concave - were needed for the composition of each, and this simple principle is that still employed in the construction of opera-glasses.