Gr.-duc. Standardizing Institute for Glass Instruments, llmenau (Tliur.). 153 



2. Alcoholometers, Hydrometers, Saccharometers, for chemi- 

 cal laboratories and many branches of industry. 



8. A few Appliances for the Analysis of Gas and Smoke. 



4. Various Appliances and Instruments for lactometric purposes. 



5. A number of Appliances and Instruments for Chemical , 

 Physical, Pharmaceutical, Educational and other purposes. 



6. Various Burettes, Pipettes, Graduated Glass-measures, 

 Lactometer-flasks, Graduated Boiling-flasks, Acetometers, Acedi- 

 meters (for tartaric acid), Albuminometers, Einhorn's Saccharometers 

 for fermented fluids and mash - acid hydrometer. One nest of 

 Evaporating Dishes and one set of Boiling Beakers with and 

 without .spout. 



IV. Emil Gundelach, Gehlberg (Thuringia). 



Glass Works: Glass hollow-ware for chemical and technical 

 purposes made of glass capable of resisting, in a high degree, the corro- 



Fig. 1. 



Fig. 2a. 



Fig. 2. 



sive action of chemicals, such as Beakers, Boiling-flasks, Retorts, Spe- 

 cimen-bottles, Cylinders, Bell-jars, Glass-tubing of all kinds etc. 



