石渠寶笈初編(養心殿),下冊,頁675&*故宮書畫錄(卷八),第四冊,頁101&*故宮書畫圖錄,第十一冊,頁155-156&* 作者許佑,字辟塵,一字弼臣,號翼庵,江蘇常熟人。生死時年皆不詳,高宗乾隆年間,曾供奉內廷畫院,擅長畫花鳥。同時,從作品觀察,不僅畫法是學惲壽平,即使落款題字也全是南田體格。惟著色運筆,比起同時畫院鄒一桂、蔣廷錫,則較為真率自然。&*Chicks under Wisteria Hsü Yu Ch'ing dynasty Hsü Yu (tzu P'i-ch'en and Pi-ch'en, hao I-an) came from Ch'ang-shu in Kiangsu. The dates of his birth and death are not recorded, but he was active during the reign of Ch'ien-lung (1736-1795), when he served in the Imperial Painting Academy. He specialized in painting flowers and birds, apparently deriving his style totally from that of Yün Shou-p'ing. Even the style of the calligraphy in his signature is based on Yün. However, when his used color and way of handling the brush are compared with those of the contemporary academicians Tsou I-kuei and Chiang T'ing-hsi, Hsü Yu's paintings seem decidedly lacking in naturalness.