i8o INDEX. 



PAGE 



Qualitative analysis, microchemical 14.9 



Quartz l6i 



Quinin, test for 146 



Ramie , 88 



" -fibre 88 



Real image (see Image). 



Rkaumur , 95 



Reduced hsemoglobin 134 



Reflected light 28 



Refraction by convex lens 4 



" " plane surfaces 3, 4 



" " prisms 5 



" , laws of 3 



" toward normal 4 



Resolving power 35 



Retina I, 2 



Retinal image 2, 3 



Retting 84 



Rice-starch 66 



Rock sections, characteristics of 154 



" " , preparation of 153 



" " , study of 153 



Sago 67 



schleiden 104 



Schwann 104 



Scutching 84 



Section cutting 46 



" " by hand 46 



" " " microtome..,, 47 



" " in pith 46,47 



Sedgwick-Rafter method 122 



Selligues 15 



Seneca 9 



Serum reaction 118 



" test for typhoid fever Iig 



Silk, formation of 92 



" , structure of 93 



Silver, alloy with copper 163 



" chloride crystals 148 



" iodide crystals , 148 



