San Francisco, Calif. 16 april 1929
Compañero:
Sin embargo de lo que le digo en mi principal de ayer, creo que conviene ir, poco a poco, filtrando nuestro pensamiento en "El Imparcial", para cuyo efecto me parece que podríamos comenzar publicando un artículo especial que Ud. quisiera enviarme y que sería de suma eficacia.
Le reitero que aquí hay varios interesados en "Amauta". Tal vez podrían colocarse algunas suscripciones. Conviene, por lo tanto que se moleste en mandarme algunos ejemplares.
Aguarda su palabra alentadora.
Luis Rodrigo
Enviole algunos comentarios hechos por mí al galope. Aquí la vida no da tregua para meditar; pero sea como fuere, los anima un pensamiento central, la defensa de nuestra raza y nuestros pueblos.

New York, 2 de julio [de 1928]
Sr. Don José Carlos Mariátegui
Lima, Perú.
Dear friend,
I wrote you some time ago, telling you with what delight I have been reading Amauta. It is a remarkable magazine; and I have a very real sense of the importance of the work you are doing. It means a good deal to me, to be able to count you among my friends.
I noticed with pleasure that you have been publishing certain chapters of my Re-Discovery of America. I am glad that you considered it worth publishing. I shall have to ask you, however, to cease these publications. I am trying to sell the Spanish rights of this book to a newspape— and I cannot afford to lose the possibility of earning this money, through the appearance in Amauta in which I receive no pay. Will you kindly tell Sr. Garro (whose address I do not have) that I thank him for his interest; that I am delighted to know that he is translating Our America for Glusberg of Buenos Aires but that I hope he is not translating any more parts of the new book?
Do let me hear from you. It is a long long time since I have had a letter from you, personally. I wonder indeed if you received my last one. And I shall be wondering if this word reaches you, until you assure me.
cordially yours
Waldo Frank