Chinese temple architecture also "wu" and "tongji" shamans, may perform services within these temples. Shenist temples are usually small and decorated with traditional figures on their roofs (dragons and deities), although some evolve into significant structures. Chinese temples can be found throughout Mainland China, Taiwan and also where Chinese expatriate communities settled over centuries. An old name in English for Chinese traditional temples is "joss house". "Joss" is an Anglicized spelling of the Portuguese word for "god", "deus". "Joss house" was in common use in English in western North America during frontier times, when joss houses were a common feature of Chinatowns. The
Incense clock and sinologist Edward Schafer asserts that incense clocks were probably an Indian invention, transmitted to China. American historian Silvio Bedini on the other hand asserts that incense clocks were derived in part from incense seals mentioned in Tantric Buddhist scriptures, which first came to light in China after those scriptures from India were translated into Chinese, but holds that the time-telling function of the seal was incorporated by the Chinese. Several types of incense clock have been found, the most common forms include the incense stick and incense seal. An incense stick clock uses incense sticks that have been calibrated