chapter XXXI

;

Helio Lobo, Brazilian consul general, New York; Sebastião Sampaio, commercial attaché of the Brazilian Embassy, Washington; and Th. Langgaard de Menezes, American representative of the Sociedade Promotora da Defeza do Café;

Felix Coste, secretary and manager, the National Coffee Roasters Association; and C.B. Stroud, superintendent, the New York Coffee and Sugar Exchange, for information supplied and assistance rendered in the revision of several chapters;

F.T. Holmes, New York, for his help in the compilation of chronological and descriptive data on coffee-roasting machinery;

Walter Chester, New York, for critical comments on chapter XXVIII .

The author is especially indebted to the following, who in many ways have contributed to the successful compilation of the Complete Reference Table in