INDEX 



467 



Serial sections, orienting objects for, 



403 



removal of mercury from, 401 



size of slides for, 405 



spreading on water, 382 



staining, 392-395 



thickness of 404 



transections or cross sections, 406- 

 407 



transferring collodion sections, 370 

 S^prpening section knives, 372-373 

 Shell vials, 331 

 Shellac cement, 364 

 Silver staining of tissues, 365 

 Simple microscope, 7 

 Sines, natural, Insert and, 272-279 

 Single-objective binocular, 83-88 

 Slides or slips for specimens (fig.), 312- 

 317 



cleaning, 314-3! 7 



thickness for dark-ground illumina- 

 tion, 314 

 Slide-basket, 385 

 Slide-tray, 199, 342-344 

 Slit mechanism of micro 7 spectroscope, 



254 



Society screw for objectives, 103 

 Sodium lines and spectrum, 252-255 

 Solar microscope, 198 

 Solar spectrum, 250, 252 

 Soluble cotton, 353 

 Solutions, 346-356 



Farrant's, 356 



how to prepare, 346-347 



percentages, how to get, 346 



saturated, 346 



Spectacles, concave and convex, dis- 

 secting, 10, 87, 427-428, 



cylindrical for astigmatism, 427- 

 428 



history of, 427 

 Spectroscope, 247 



direct vision, 249 



examination of color screens with, 



239 

 Spectrum, 250-251 



absorption, 250-264 

 Angstrom and Stokes law, 252 



banded, 250 



blood, arterial and venous, 259 



carbon monoxide hemoglobin, 261 



carmine solution, 262 



color screens, 239 



colored bodies without bands, 262 



colorless bodies, 262 



comparison or double, 255 



complementary, 253 



continuous, 248 



daylight or sunlight, 250 



double or comparison, 255 



hemoglobin, 260 



incandescence or line, 250 



methemoglobin, 252 



minerals, monazite, etc., 263 



normal and prismatic (fig.), 247, 

 250 



oxy hemoglobin, 260-261 



permanganate of potash, 252, 259 



prismatic and normal (fig.), 247, 

 250 



sodium, 252 



solar or daylight, 252 

 Spherical aberration, 284-285 

 Stage, mechanical, 27, 102 

 Stain, alcoholic and aqueous, 393 



acid and basic, 393-394 



aqueous and alcoholic, 393 



combined, 397 



counter, 392, 395-396 



differential, 392 



elastic, 355 



general, 392 



multiple, 397 



nuclear, 392 

 Staining, 332, 392-402 



in toto, 351 

 Stand, microscopic, 27, 97-100 



focusing for embryos, 210 

 Standard distance for magnification, 



130, i39 

 Standards, R. M. S., for objectives, 103- 



106 



condensers, 106 

 oculars, 106 



Starch, determination of, by polarized 

 light, 268 



