A preliminary report is offered on schools that offer all or a greater part of their instruction in a language other than English. Emphasis is laid on instruction geared toward the language maintenance of ethnic communities. Language reports include the approximate number of speakers and number, distribution, and basic characteristics of schools. Some detailed reports on individual schools are included, along with a certain amount of more extensive statistical information. The language reports are supplemented by three essays: (1) "Cultural Pluralism and the American School"; (2) "Whorfianism of the Third Kind: Ethnolinguistic Diversity as a Worldwide Societal Asset"; and (3) "Why Do Some Ethnic Community Schools in the USA Accomplish More than Others with Respect to Ethnic Mother Tongue Instruction?" (JB)