Primary microscopy and biology. A text book for the use of students in high schools, normal schools and academies (1890)
Schneider, Albert, 1863- [from old catalog] · Fairbury, Ill., The Blade printing office · leaf 16
nds the angle of the axes at a greater distancethan the object. d b bisects abc, .\ ad*dc::ab:bc.As b c is greater than b a so is d c greater than ad. ad andd c measure the distances of object and image from the cen-ter of curvature. Note.—Other problems in concave and convex mirrorsshould be… … (18) A, A double convex lens has a common base andtwoequally or unequally convex surfaces. (19) B, A plano-convex lens has one side convex, theother plane. It is simply a segment of a sphere or half ofa double convex lens. (20) C, The meniscus or convexo-concave lens has onesurface concave, the…
Microscopy · Biology
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