The acquisition of routines is one aspect of language development. Routines such as Bye-bye, in contrast to more referential language, appear to be among the earliest acquisitions and are congruent with the sensori-motor child's capacities. This study investigates performance of the highly constrained Hallowe'en Trick or treat routine in 115 children from 2 to 16 years of age. Changes in competence and the role of parental input are examined in relation to cognitive and social factors. (First routines; the Hallowe'en interaction; children's production; adult participation; adult metalanguage; implications for ethnographic research.)

The use of interpersonal verbal routines such as greetings and thanks is examined as a universal phenomenon of human languages, related in some way to the widespread ‘greeting’ behavior of other animals. Examples from Syrian Arabic, American English, and other languages are used to show differing patterns of structure and use, susceptible of grammatical and sociolinguistic analysis. Features of diachronic change and children's acquisition are briefly treated. Call is made for better description and analysis of politeness formulas in grammars of languages and in ethnographics of communication. (Ritual, politeness, language change, language acquisition.)

The decree of 4 July, 1974, by President Kenyatta, proclaiming Swahili as the national language of Kenya is discussed with reference to questions of feasibility and expediency. The alternatives to the President's decree are considered, and reasons for the decision are suggested.

Comparison of the status of Swahili in the capital cities of Kenya (Nairobi) and Tanzania (Dar es Salaam) is made to illustrate the special difficulties confronting the Kenya government in making the President's decree effective. The parliamentary response is crucial, but the dominance of English in Nairobi, the capital city, where Swahili has not always been much valued, indicates a wider gap between intention and the possibility of fulfilment than in Dar es Salaam.

The need for proficiency in Swahili is viewed in the Kenya situation, and this is related to what is linguistically appropriate. The nationalization of Swahili results in secularization of a language that found its normal expression in the setting of Islam. What is linguistically appropriate in Swahili on the national level is often inappropriate to members of the Swahili coastal community. Kenyans are likely to opt for their own modifications of Standard Swahili, basing this on the Mombasa dialect, but up-country Swahili is the foundation upon which greater proficiency can be achieved. (Language planning, language policy, regional and social stratification of varieties, Swahili; Kenya, Tanzania.)

Although the rates of changes in language are customarily described in relative terms, this paper presents a method of quantifying the rate of a given change during a specific time period. Utilizing the results of recent studies of sound change in progress, the Rate of Change Index is applied to the data for the purpose of indicating precisely the speed of these changes. Also measured in this manner are the rates of change of a variable in different phonetic contexts and among different social classes. The comparisons made here lend support to two important theories: that linguistic change follows an S-curve and that change proceeds more rapidly in urban than in rural areas. The Index contributes, then, to an inductive model of sociolinguistic change. It is also suggested that the Index can be applied to syntactic and lexical changes as well. (Linguistic change, Sociolinguistics, Phonology.)

A number of studies have shown regular correlation between linguistic variation and social-class differences. Definition and identification of social class in a particular situation, however, still presents problems. The problems are discussed with reference to a study in Glasgow where occupation was used as the sole criterion for social-class membership.

Samples of speech suitable for sociolinguistic analysis may be sought in several ways. Interviews (either formal or informal), and tape-recorded group sessions, are the methods most used currently. In research on a specific variable, the historical present tense (HP), none of these methods proved neutral or adequate. Although the historical present tense is very widely used in conversational narratives, its occurrence within interviews is so infrequent as to be striking. An explanation was found in the way in which the interview has a specific known place as a speech event in the culture of those whose speech was being studied. The so-called spontaneous interview does not have such a place, and for that very reason is even less satisfactory a source of data. The notion of natural speech is taken as properly equivalent to that of appropriate speech; as not equivalent to unselfconscious speech; and as observable easily, and often best, by simple techniques of participation. (Sociolinguistic methodology; speech events, interviews, observation, natural speech; United States English).

Recent research in American Sign Language (ASL) has concentrated on demonstrating that ASL, a language channelled through the manual—visual modality, has linguistic properties similar to those of oral languages, except for physical sound. The absence of sound, however, really presents no theoretical problem since ASL has a formational level of structure analogous to, but not dependent on, the phonological component of oral languages (Stokoe 1960; Battison 1974).

This paper will discuss a relatively new area of research in Sign linguistics, ethnic—social variation. Because of attitudes and educational policy, Black signers in the South have developed different varieties of signing from Whites. Concentrating primarily on Black signs in Georgia, this paper will discuss some of the lexical and formational (phonological) variation observed in old and young Black signers. (Sociolinguistic variation; sign languages; linguistic change; minority group languages.)