92 POLAEIZED LIGHT AND ITS APPLICATION TO THE MICEOSCOPE. 
ist may perform the most dexterous analysis ; the crystallogra- 
pher may examine crystals by the nicest determination of their 
forms and cleavage ; the anatomist or botanist may use the dis- 
secting knife and microscope with the most exquisite skill ; but 
there are still structures in the mineral, vegetable, and animal 
kingdoms, which defy all such modes of examination, and 
which yield only to the magical analysis of polarized light. A 
body, which is quite transparent to the eye, and which might 
be judged as monotonous in structure as it is in aspect, will yet 
exhibit, under polarized light, the most exquisite organization, 
and will display the result of new laws of combination which 
the imagination even could scarcely have conceived. 
120. Iii§t off Otojects for tlie Polariscope. Sufficient 
having now been stated to give the reader a general view of 
the nature and use of polarized light and its application to the 
microscope, we shall conclude this subject by simply giving a 
TABLE OF THE MOEE INTEEESTING OBJECTS FOE THE MICEOSCOPE, 
WHICH AEE ESPECIALLY BEAUTIFUL WITH POLAEIZED LIGHT : 
ANIMAL STRUCTUKES. 
^ Bone of Cuttle-fish, 
^ Fibres of Sponge, 
Hoof of Ass, 
Hoof of Camel, 
Hoof of Sheep, 
Hoof of Horse, 
Hoof of Ox, 
Horn of African Rhinoceros, 
transverse section, 
longitudinal section, 
Horn of Indian Rhinoceros, 
Horn of Antelope, 
Horn of Ox, 
Horn of Sheep, 
Polyzoaries, 
y Quill of Porcupine, 
Quill of Echidna, 
Quill of Condor, 
Tendon, Human, 
Tendon, Ostrich, 
Gray Human Hair, 
Raw Silk, 
Scale of Eel, 
Scale of Sole, 
Skin, Elephant, 
Skin, Crocodile, 
Skin, Human, f- 
Skin, Rhinoceros, 
Skin, various Serpents, 
Spicules of Gorgonia, r* 
Whalebone, 
Palate of Whelk, ^ 
Palate of Limpet, 
Palate of Nassa, 
Palate of Paludina, 
Palate of Cyclostoma, 
Wing cases of Beetles, 
Scales of Fishes, 
Sections of Hairs, P* 
Sections of Teeth, ^ 
Nerves and Muscle. 
J. k W. GRUNOW & GO’S ILLUSTRATED 
