Tractatus Logico-Philosophicus, Passages from the Life of a Philosopher, and A Tangled Tale are probably our most MathML-heavy books. Books from the PD era are

Tractatus Logico-Philosophicus, Passages from the Life of a Philosopher, and A Tangled Tale are probably our most MathML-heavy books. Books from the PD era are not very likely to feature math serious enough to require MathML. This is probably for the best... MathML support in ereaders is poor, with the exception of iBooks and Kobo. Raw MathML is retained in our "advanced" epubs, but it's converted to PNGs in our "compatible" epubs, for this reason. https://standardebooks.org/ebooks/ludwig-wittgenstein/tractatus-logico-philosophicus/c-k-ogden https://standardebooks.org/ebooks/ludwig-wittgenstein/tracta... https://standardebooks.org/ebooks/charles-babbage/passages-from-the-life-of-a-philosopher https://standardebooks.org/ebooks/charles-babbage/passages-f... https://standardebooks.org/ebooks/lewis-carroll/a-tangled-tale https://standardebooks.org/ebooks/lewis-carroll/a-tangled-ta...