Jung apparently had learned English by the time he went to the Burghol
zli Clinic, in 1900. There he worked with American and British psychia
trists, wrote papers in English, and treated his first American analys
ands. Through one of these, Medill McCormick, Jung came to know influe
ntial Americans and his curiosity about the United States grew. In 190
9, he first visited the States, along with Freud, and by the time of t
heir break Jung had established 'firm affinities' with America. His re
lations with Great Britain took root about then. The first Jungian gro
up was formed under the leadership of Constance Long, who was effectiv
e also in organizing American Jungians. After the Great War, Jung freq
uently visited England to lecture and lead seminars arranged by H. G.
Baynes and M. Esther Harding. He travelled to the American Southwest,
East Africa, and India in the company of American and English friends.
After World War II, Jung's association with Mary and Paul Mellon's Bo
llingen Foundation and the publishers Routledge and Kegan Paul led to
the joint project of the Collected Works. In I976, fifteen years after
Jung's death, the twentieth and final volume appeared, and work on ed
itions of Jung's letters, interviews, and seminars, also under America
n and British auspices, was well advanced.