[Toronto]: publisher not identified,1858 (Toronto: Printed at Blackburn's City Steam Press); 108 pages with full-text search [?]
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|Title||A treatise on light, vision, & colours : comprising a theory on entire new principles, deduced, by great care and study, from common nature, explanatory of much phenomena not before explained or understood / by Thomas Brett, Esq., County of Peel, C.W.|
|Published||[Toronto]: publisher not identified,1858 (Toronto: Printed at Blackburn's City Steam Press)|
|Document source||the Library of Parliament and the National Library of Canada.|