APPENDIX 



Equipment. Nearly all of the apparatus and materials called for in 

 this book may be found in the physical, chemical, and biological labora- 

 tories of the average high school. There should be ready, however, for 

 frequent and convenient use, the following : One or more compound 

 microscopes with two-thirds and one-fifth inch objectives; a set of pre- 

 pared and mounted slides of the various tissues of the body ; a set of 

 dissecting instruments, including bone forceps ; a mounted human 

 skeleton and a manikin or a set of physiological charts ; a set of simple 

 chemical apparatus including bottles, flasks, test tubes, and evaporating 

 dishes ; and a Bunsen burner or some other means of supplying heat. 



The few chemicals required may be obtained from a drug store or 

 from the chemical laboratory. Access to a work bench having a set of 

 carpenter's tools will enable one to prepare many simple pieces of appa- 

 ratus as they are needed. 



Physiological Charts are easily prepared by teachers or pupils by care- 

 fully enlarging the more important illustrations found in text-books or 

 by working out original sketches and diagrams. These, if drawn on 

 heavy Manila paper, may be hung on the wall as needed and preserved 

 indefinitely. By the use of colors, necessary contrasts are drawn and 

 emphasis placed on parts as desired. The author has for a number of 

 years used such home-made charts in his teaching and has found them 

 quite satisfactory. His plan has been to draw on heavy Manila paper, 

 cut in sizes of two by three feet, the general outline in pencil and 

 then to mark over this with the desired colors. There is of course an 

 opportunity for producing results that are artistic as well as practical, 

 and if one has time and artistic skill, better results can be obtained. 

 Many of the cuts in this book are excellently suited to enlargement and, 

 if properly executed, will provide a good set for general class purposes. 



Models. The use of prepared models of the different bodily organs 

 is strongly urged. These may be so used in elementary courses as to 

 obviate much of the dissections upon lower animals. Although the 

 actual tissues cannot be so well portrayed, the general form and con- 

 struction of organs are much better shown. Models well adapted to 

 class or laboratory work are easily obtained through supply houses. 

 Illustrations of several of these are shown in connection with the " Prac- 

 tical Work." 



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