"Koch" Quotes from Famous Books
... by far the most common form of this willow; mature leaves glabrous above; twigs yellow. Var. caerulea, Koch.; mature leaves bluish-green, glabrous above, glaucous beneath; ... — Handbook of the Trees of New England • Lorin Low Dame
... "Plates" (Fig. 8, a).—These have now completely replaced the rectangular sheets of glass introduced by Koch for the plate method of cultivation. Each "plate" consists of a pair of circular discs of glass with sharply upturned edges, thus forming shallow dishes, one of slightly greater diameter than the other, and so, when inverted, forming a cover or cap for the smaller. ... — The Elements of Bacteriological Technique • John William Henry Eyre |