writes that Shen Kuo's "scattered set" of writings lacks clear-cut organization and "theoretical acuteness," that is, scientific theory. Nathan Sivin wrote that Shen's originality stands "cheek by jowl with trivial didacticism, court anecdotes, and ephemeral curiosities" that provide little insight. Donald Holzman writes that Shen "has nowhere organized his observations into anything like a general theory." Huff writes that this was a systemic problem of early Chinese science, which lacked systematic treatment that could be found in European works such as the Concordance and Discordant Canons by the lawyer Gratian of Bologna (fl. 12th century). In regard to an overarching concept of science which could branch together all the various sciences studied by the Chinese, Sivin asserts that the writings of Shen Kuo "do not indicate that he achieved, or even sought, an integrated framework for his diverse knowledge; the one common thread is the varied responsibilities of his career as a high civil servant." Burial and posthumous honors Upon his death, Shen Kuo was interred in a tomb in Yuhang District of Hangzhou, at the foot of the Taiping Hill. His tomb was eventually destroyed, yet Ming dynasty records indicated its location, which was found in 1983 and protected by the government in 1986. The remnants of the tomb's brick structure remained, along with Song dynasty glasswares and coins. The Hangzhou Municipal Committee completed a restoration of Shen's tomb in September 2001. In addition to his tomb, Shen Kuo's Mengxi garden estate, his former two-acre (8,000 m2) property in Zhenjiang, was restored by the government in 1985. However, the renovated Mengxi Garden is only part of the original of Shen Kuo's time. A Qing dynasty-era hall built on the site is now used as the main admissions gate. In the Memorial Hall of the gardens, there is a large painting depicting the original garden of Shen Kuo's time, including wells, green bamboo groves, stone-paved paths, and decorated walls of the original halls. In this exhibition hall there stands a 1.4 m (4.6 ft) tall statue of Shen Kuo sitting on a platform, along with centuries-old published copies of his Dream Pool Essays in glass cabinets, one of which is from Japan. At the garden estate there are also displayed marble banners, statues of Shen Kuo, and a model of an armillary sphere; a small museum gallery depicts Shen's various achievements. The Purple Mountain Observatory in Nanjing discovered a new