mathematics 209 history 200 geometry 192 mathematical analysis 160 educational literature 150 geology 145 dictionaries 119 more ... technology 118 chemistry 101 architecture 100 physics 100 French language 95 classical mechanics 92 civil engineering 91 algebra 84 science 82 mechanical engineering 70 descriptive geometry 66 inorganic chemistry 63 geodesy 63 organic chemistry 59 physiology 53 engineering 48 reciprocating steam engines 45 exhibitions 44 agriculture 44 bridges 43 military affairs 43 mineralogy 42 geography 39 less ...