mathematics 224 geometry 201 history 200 mathematical analysis 168 geology 158 architecture 149 French language 130 more ... technology 119 chemistry 118 dictionaries 117 educational literature 111 physics 109 algebra 94 classical mechanics 92 civil engineering 86 science 80 inorganic chemistry 77 descriptive geometry 66 mechanical engineering 66 engineering 66 organic chemistry 64 geodesy 63 German language 55 bridges 54 physiology 53 agriculture 51 English language 49 probability theory 48 mineralogy 47 reciprocating steam engines 45 less ...