APPENDIX. 325 



the growing season. In cold weather seeds ma,y be sprouted 

 and plants grown in a box of moist soil kept in a warm 

 room. If the germination only is to be observed, the seeds 

 may be placed on anything which is kept moist, as a layer 

 of cotton on water in a small vessel ; in an unglazed earthen 

 dish, as a saucer of a flower-pot placed on a plate or in 

 a shallow dish containing water, etc. In such case the 

 plantlets will grow only as long as there is nourishment in 

 the seed to draw from. It is desirable to preserve specimens 

 for later study or reference. As a general thing, they need 

 simply be dried, in which case they retain, more or less, their 

 natural appearance. Delicate parts, as leaves, flowers, etc., 

 must be dried between papers under pressure, otherwise 

 they become distorted and unsightly. Collections of twigs, 

 showing various kinds of buds, their variation in shape, 

 size, etc., and specimens of leaves and flowers after being 

 dried, can be fastened on stiff paper for preservation and 

 further use. The specimens may be sewed on the paper, or 

 fastened by using narrow strips of gummed paper, placing 

 a sufficient number across the specimen to hold it in place; 

 another common mode of mounting (as this is called) is to 

 glue the specimen to the paper, using common white glue, 

 or a mucilage of gum-arabic. Specimens should invariably 

 be accompanied by illustrations made from fresh specimens, 

 which may be mere outline figures, such as every pupil with 

 a little practice can readily draw. The drawing of figures 

 of specimens daily studied, on the black board as well as on 

 paper, should be constantly practiced. 



329. The study of Histology, or minute anatomy, can 

 be made much more profitable by the aid of the micro- 

 scope. This instrument, for studying the most of the cells, 

 tissues, etc., mentioned in the text-book, numerous as they 



