The article History of Interlingua says,
- Later that same year , Dr. Edward L. Thorndike published a paper about the relative learning speeds of "natural" and "modular" constructed languages. Both Shenton and Thorndike were major influences on IALA's work from then on.
However, it doesn't give a cite, or any details about the contents of, Thorndike's research or the paper he published on it. Can anyone identify this paper, summarize its contents, and supply a cite (and maybe a correction, if needed) for the History of Interlingua article? More specifically, what "natural" and "modular" conlangs did Thorndike use in his study, what were the native languages of his research subjects, and did he test for active as well as passive fluency in the learned conlangs? --Jim Henry (talk) 14:06, 10 September 2008 (UTC)