The Guide covers periodical literature published in Latin American countries in the following areas: exact sciences (astronomy, mathematics, physics, chemistry, geophysics, geology, geography, and biology), applied sciences (medicine and agriculture), and technical sciences (engineering). Information supplied with the individual items contains, among others, the type of materials published, topics covered, language, bibliographical materials included, editor, former titles, pagination, indexing, subscription, and coverage by indexing and abstracting services. The index also lists periodicals alphabetically by countries (p. 135-158), followed by an appendix containing a statistical analysis of the materials (p. 165-187). The carefully prepared Guide will be a welcome supplement to Zimmerman’s Guide to Current Latin American Periodicals: Humanities and Social Sciences (1961), with only items on geography overlapping.

Doctoral dissertations prepared in the United States and Canada are collected in the Theses, arranged by alphabet of their authors, with added indices by institutions (p. 91-98) as well as by topics (p. 99-124).

The Survey is the fourth in its series, following issues in 1953, 1956, and 1959. It contains data on research presently in progress in institutions of higher learning in the United States. The 861 items appear under 17 topical headings, from agriculture to political science, with a key to institutions (p. 55-60), another to organizations, periodicals and publishers (p. 61-67), an author index (p. 69-76), and an index by countries (p. 77-80).

The Guide will without a doubt prove to be a most valuable bibliographical tool, while the Theses and the Survey together indicate an impressive amount of research conducted in the field of Inter-American studies.