2 INTRODUCTION. 



who may eventually give the major part of his time to 

 botany or to any other subject. 



II. EQUIPMENT. 



The laboratory should be provided with well made 

 unvarnished tables, so placed as to leave ample space for 

 students to move about the room. If good light comes 

 from one or two sides of the room, the best results may be 

 obtained by placing the tables with their ends to the 

 windows. There should be for general use: 



1. A supply of good water, distilled water being prefer- 

 able in many cases. 



2. Commercial alcohol or synthol. 



3. Formalin. 



4. Glycerin. 



5. A five per cent solution of potassium hydroxid or 

 sodium hydroxid. 



6. lodin. 



7. A cement for ringing mounts. King's, or "gold size" 

 will be satisfactory. 



8. Camel's-hair brushes. 



9. A turntable. 



10. A razor-strop. 



11. A hone for sharpening razors, and another for scal- 

 pels. 



12. Two or three vascula. 



13. Glass bottles and jars of various sizes for collecting 

 and preserving specimens. 



14. Some large glass jars for growing water- plants in the 

 laboratory. 



15. Driers, plant-press, and mounting-paper. 



