26 



E. Jung, Heidelberg. 



3. Thoma's Microtome No. II, length of bed 27 cm, with simple 

 object holder, simple micrometer screw, freezing apparatus, knives etc. 



4. Thoma's Microtome No. II, equipped according to the directions 

 of the Zoological Station of Naples (Fig. 2). 



5. Thoma's Microtome No. Ill, simple equipment, with movable 

 object holder, micrometer screw and knives. 



6. Automatic Microtome for objects embedded in paraffine, with 

 endless transporting band for sections; capable of cutting sections 

 of 0.001 mm thickness (Fig. 3). 



7. Small Microtome with mechanical knife motion, arranged as a 

 freezing and paraffine embedding microtome. (An extra-ordinarily 

 cheap instrument which commends itself for many purposes; (Fig. 4.) 

 Registered ! 



8. Small microtome, similar to No. 7, with automatic feed. 



9. A set of microtome knives and Instruments of nickelin and 

 platino-iridium for micrological purposes. 



10. Microtome knife with longitudinal bore for cooling by water or 

 air (Fig. 5). 



