Summarizes types of machine access available for users of Chemical Abstracts Online, a database which can accept and print out graphics images of chemical compounds. The use of Tektronix terminals, capabilities and limitations of other types of graphic termials and microcomputers, and estimated costs are noted. (EJS)

Discusses major features and capabilities of gateway software--microcomputer software packages that act as interfaces between users and bibliographic retrieval systems they are searching--i.e., communication, interface, auxiliary programs. Four programs (In-Search, Universal Online Searcher, Search Helper, microDisclosure) are reviewed and…

Evaluates TRADEMARKSCAN image retrieval using DIALOGLINK communications software. Factors discussed include TRADEMARKSCAN's composition, retrieval methods, file size, downloading and printing time and costs, and database applications. Software requirements and functions relevant to image retrieval are also discussed, and suggestions for…