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As an application of these studies the plan of a semicircular vault
Pl. CIII No. 2) may be mentioned here, disposed so as to produce no
(
thrust on the columns on which it rests: volta i botte e non
ispignie ifori le colone. Above the geometrical patterns on the
same sheet, close to a circle inscribed in a square is the note: la
ragio d'una volta cioe il terzo del diamitro della sua ... del
tedesco in domo.
There are few data by which to judge of Leonardo's style in the
treatment of detail. On Pl. LXXXV No. 10 and Pl. CIII No. 3, we find
some details of pillars; on Pl. CI No. 3 slender pillars designed
for a fountain and on Pl. CIII No. 1 MS. B, is a pen and ink drawing
of a vase which also seems intended for a fountain. Three handles
seem to have been intended to connect the upper parts with the base.
There can be no doubt that Leonardo, like Bramante, but unlike
Michael Angelo, brought infinite delicacy of motive and execution to
bear on the details of his work.
XIV.
Anatomy, Zoology and Physiology.
Leonardo's eminent place in the history of medicine, as a pioneer
in the sciences of Anatomy and Physiology, will never be appreciated
till it is possible to publish the mass of manuscripts in which he
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