a piece of apparatus for teaching blind people the theory of the syllogism.

Related Articles:

'Making a Virtue of Necessity in the Teaching of the Blind', Journal of Teaching Academic Survival Skills 1 (February, 1999), pp.28-39.

'Teaching Syllogistic to the Blind', in J. Mey and B. Gorayska (eds.),Cognitive Technology: in Search of a Humane Interface (Amsterdam, Elsevier, 1996), pp.243-255.

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