I The Gardens of Venice! --“_Veri paradisi terrestri, per la vaghezza dell’aiere e del sito lioghi di ninfe e di semedei!_”--in an ecstasy of delight wrote Andrea Calmo, in one of his characteristic “_Lettere_.” He was not the first by any means who had felt the gentle influence of those earthly bits of Paradise, for an observant monk, Frate Felice Faber, of Ulm, goes into raptures, in his “_Evagatorium Terræ Sanctæ_,” over the roof-gardens he beheld in 1457, as he passed through Venice on his pilgrimage to the Hol…