APPENDIX 



LIST OF APPARATUS AND SUPPLIES, AND THEIR COST 



Everything required in these Lessons as apparatus and supplies 

 will be found in the equipment commonly provided for teaching the 

 high school sciences. Good substitutes for many articles named may 

 easily be arranged. It will always be best, however, to have separate 

 supplies for the work in General Science, and to have them kept for 

 this use only. 



As a reference list when purchases are to be made it will be found 

 convenient to note what the Lessons call for as given below. The 

 prices named are approximate only, and the articles named may be 

 had of any of the supply and apparatus houses. Articles commonly at 

 hand anywhere, or readily obtainable at home, are not listed. Collec- 

 tions of garden seeds and of grains may be kept in small bottles prop- 

 erly labeled, and seeds of various trees may be kept in cigar boxes. 

 Such supplies are readily provided for class use during the year. 



Type forms of leaves and roots and flowers, suitably mounted, 

 together with exhibits of various rock and ore specimens on cardboard 

 (securely sewed in place), are desirable additions to the stock of sup- 

 plies. Some of the large industries have "School Exhibits," which 

 may be secured at nominal charge ; these show the various stages of 

 manufacture of raw materials into marketable products. 



[It is to be remembered that the books and bulletins listed 

 elsewhere are considered an essential part of the working 

 material for these Lessons.] 



acids : 



hydrochloric, 1 lb., with bottle $.25 



nitric, 1 lb., with bottle 30 



sulphuric, 4 Ibs., with bottle 55 



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