APPENDIX. 



INSTRUCTIONS TO TEACHERS OF BOTANY, FROM THE DIRECTORY OF THE SCIENCE AND ART DEPARTMENT. 



I. — Preserving Specimens. 

 Some trouble might be saved, and teaching made more effective, if a small collection of structural specimens were 

 kept to serve as illustrations. Such things as bark, thorns, seed-vessels, etc., can be kept in card-board boxes or drawers. 

 Others, such as tubers, rhizomes, the inflorescence and fruit of Arum, and fruits generally, must be kept in bottles in some 

 preservative solution, and the following answers very well : — 



Goadbys Solution. 

 i lb. common salt. \ lb. potash-alum. 16 grains corrosive sublimate. i gallon distilled water. 



II. — Apparatus required for Dissecting Flowers. 

 A sharp knife for making sections. 



Dissecting needles. The best are glovers' needles which are three-edged. They may be conveniently mounted in 

 pieces of fresh twigs. Push the end of the needle into the pith cavity, and put the needle, now furnished with a handle, 

 aside for a few weeks. The wood will contract in drying and hold the needle firmly. [The wood of the Elder is very 

 handy for this purpose.] 



A simple microscope. This may be nothing more than a lens magnifying about four times, which should be mounted 

 on a small stand, so that the pupil when looking through it wi.th one eye has the hands free to dissect a flotver placed 

 beneath the lens. For examining the structure of ovaries (habitually ignored by the pupils who present themselves for the 

 Department's examinations), a higher magnifying power, such as a Coddington lens similarly mounted, will be found 

 needful. 



