United States of America

a) M. Lowenfeld and Ursula Stewart, 16.4.56 - 12.6.56.

b) M. Lowenfeld and Robert Allen, 23.4.56 - 1.6.56.

c) M. Lowenfeld and Miss Margaretten (who tested Kaleidoblocs in British schools for Margaret Lowenfeld), 26.4.56 - 2.5.56.

d) M. Lowenfeld and Dr John Stafford, 30.4.56 - 1.5.56.

e) M. Lowenfeld to H. Koch, 30.4.56.

f) M. Lowenfeld and Margaret Mead, 7.5.56 - 17.10.56.

g) M. Lowenfeld to William Stephenson, 11.5.56.

h) M. Lowenfeld and Evelyn Goodenough, 24.12.56 - 6.1.57.

i) M. Lowenfeld and Mr S.R. Slavson, 22.10.57 - 20.12.57 (Also includes data on children tested).

j) M. Lowenfeld and Alfred Hall, 29.7.58 - 10.8.58.

k) M. Lowenfeld and Leonard Campos, 29.11.65 - 1.7.68.

l) M. Lowenfeld and Judith Long, 1.2.66 - 14.4.66.

m) M. Lowenfeld and Beverley Cooper, 14.5.66 - 26.9.66.

n) F. Behn Riggs to M. Lowenfeld, 20.5.66.

o) M. Lowenfeld and Samuel Brawn, 8.6.66 - 25.10.66.

p) M. Lowenfeld and David Wickens, Nov. 66 - 8.11.66.

q) M. Lowenfeld and Marcia Shaffer, 14.11.66 - 21.11.66.

r) M. Lowenfeld and Mrs Wayne Melander, 28.9.69 - 10.10.69.