The collection consists of letters written to Rangel by authors and political figures of early 20th Century Mexico, reflecting a wide network of acquaintances. Many letters concern historical and literary scholarship conducted by himself and other prominent authors of the era.

The collection consists of letters written to Rangel by authors and political figures of early 20th Century Mexico, reflecting a wide network of acquaintances. Many letters concern historical and literary scholarship conducted by himself and other prominent authors of the era.

The collection consists of letters written to Rangel by authors and political figures of early 20th Century Mexico, reflecting a wide network of acquaintances. Many letters concern historical and literary scholarship conducted by himself and other prominent authors of the era.