mathematics 234 geometry 202 history 200 mathematical analysis 169 architecture 161 geology 158 French language 129 more ... chemistry 118 technology 118 dictionaries 117 educational literature 111 physics 109 algebra 96 classical mechanics 92 civil engineering 86 science 80 inorganic chemistry 77 descriptive geometry 67 mechanical engineering 67 engineering 67 organic chemistry 64 bridges 54 German language 54 physiology 53 agriculture 52 English language 49 probability theory 48 mineralogy 47 reciprocating steam engines 45 exhibitions 44 less ...