00575nam a22001691 4500 doctrineproport01byrngoog CaSfIA 20191223234934.0 m o d cr|||||||||||| 841108s1841 enk o 00010 eng 04024247 //r84 DLC/ICU ICU CaSfIA QA481 .B9 Byrne, Oliver. The doctrine of proportion clearly developed, on a comprehensive, original, and very easy system; or, The fifth book of Euclid simplified. By Oliver Byrne ... London, J. Williams, 1841. 1 online resource (xix, 98, [2] pages) Ratio and proportion. https://archive.org/details/doctrineproport01byrngoog Free eBook from the Internet Archive https://openlibrary.org/books/OL6944954M Additional information and access via Open Library http://books.google.com/books?id=k2sLAAAAYAAJ&oe=UTF-8 Source copy of item, at google.com doctrineproport01byrngoog ark:/13960/t44q8bn9d