Till October 14th at the National Taiwan Museum, in Taipei, there is an exhibit of Chen Chi-lu's ethnological drawings. It's a rare opportunity to see some carved masterworks (the original from the drawings) that, after the exhibit, are not going to be shown to the public before a long time.
More infos :
http://taiwanjournal.nat.gov.tw/ct.asp?xItem=24347&CtNode=122
I remind you that many objects of the Yang-Grevot Collection were gathered in the 60s by Joseph Kagle, under the advise of Chen Chi-lu.