ILLUSTRATIONS. 



Page, 

 FIG. 1. Apparatus for the determination of lead subacetate precipitate in maple 



products 73 



2. Apparatus for the determination of carbon dioxid in beer 93 



3. Bromwell's fusel oil apparatus 97 



4. The Abbe refractometer, with temperature-controlled prisms 131 



5. Zeiss butyro-refractometer 132 



6. Apparatus for the determination of melting point : 134 



7. Saponification flask 140 



8. Apparatus for the distillation of volatile acids 141 



9. Knorr's apparatus for the determination of carbon dioxid 170 



10. Heidenhain's apparatus for the determination of carbon dioxid 172 



11. Apparatus for the determination of benzoic acid 182 



APPENDIX. 



FIG. 1. Combustion tube 236 



2. Detail of combustion tube 237 



XXI 



