This essay assesses the principal literature published on the theory of information science during 1971-1976. This literature is compared to the article, "From Information Science to Informatics: A Terminological Investigation," by Hans Wellisch. What has been written since Wellisch wrote was found to be not equal in quality to this article, and questions he raised have not been considered by colleagues who have, until recently, also ignored the works of Soviet counterparts Mikhailov, Chernyi, and Giliarevski. The scope of writing on the theory of information science is narrow, and no progress has been made toward the goal of defining information science as a discipline or as a science. The essay provides a broad overview of the literature to encourage both increased communication and the reassessment of intellectual positions by those working in the field. (Author/KP)