Cambridge International AS and a Level Biology Coursebook with Digital Access (2 Years)Mary Jones, Richard Fosbery, Dennis Taylor, Jennifer Gregory · First published 2020Open the Tome
The adjustment and testing of telescope objectivesHarold Dennis Taylor · First published 1921Open the Tome
"The secondary colour aberrations of the refracting telescope in relation to vision," and "Description of a perfectly achromatic refractor"Harold Dennis Taylor · First published 1896Open the Tome
