3 
He has used this technique for the analysis of ecological data on fish species found 
in the vicinity of the Panama Canal. The technique is very reminiscent of the 
"Termatrex" system now in use for retrieval of catalogue data in several museums 
(i.e., the Mammal Division of the American Museum of Natural History), but it has the 
advantage that it can be reproduced and distributed as part of a published study. 
Duke has done this, in a work entitled "Darien Fish Polyclave," issued March 12, 1970, 
by the Battelle Memorial Institute, Columbus Laboratories, 505 King Avenue, Columbus, 
Ohio, 43201. The work includes two basic tables with four transparent overlays 
attached to permit the user to see the technique, and then a large series of addi¬ 
tional tables are presented with the suggestion that the reader utilize a photocopy 
machine to make up a series of transparencies for himself. 
"COMPUTERS IN R AND D" 
The magazine "Research/Development" devoted a large part of the April, 1970 
issue to a series of articles on some of the problems faced by those thinking about 
computer use. The titles are as follows: 
Instrumentation in a Time-shared Environment (20-26). 
Dedicated or Time-share? (27-31). 
Analog, Digital, or Hybrid? (32-36). 
Should You Use a Consultant? (38-40). 
Deducing Molecular Structure (75-78). 
RECENT LITERATURE 
Alpert, D. and D. L. Bitzer. Advances in Computer-based Education. Science, 
vo1. 167, 1970, pp. 1582-1590. 
Bridges, Kent., Automatic indexing of personal bibliographies. BioScience, 
vol. 20, 1970, pp. 94-97. 
Cameron, D. R. and J. A. Toogood. Computer mapping of Alberta soil test data. 
Canadian Journal of Soil Science, vol. 50, 1970, pp. 1-7. 
Crovello, T. J. and R. D. MacDonald. Index of EDP-IR projects in systematics. 
Taxon, vol. 19, 1970, pp. 63-79. 
Daly, Diana. How to choose a time-sharing service. Computer Decisions, March, 
1970, pp. '44-48. For the group still considering taking out a time-share contract, 
this little article is full of useful information. 
