138 THE AMERICAN MONTHLY [May, 



450x. Shows Fibrin filaments, spores, spore masses, white corpuscles en- 

 larged, amoeboid movements. 



2. Blood, consumptive, 3d stage ; dry, l-50th inch objective, 1300x. 

 Shows white corpuscle enlarged with internal changes from ento-phytal 

 growths. Ked corpuscles thin, pale, nucleated. 



3. Healthy human blood ; dry, l-50th inch, ISOOx. White corpuscle 

 shows clear face and no ento-phytal growths. Clean serum interspaces. Eed 

 globules. 



4. Consumptive blood, 2d stage ; dry, l-16th inch, 450x. After three 

 months of animal food diet, shows when compared with 5, a clearing up of 

 spores — nummulation attempted, white corpuscles mostly reduced to normal 

 size. Spore collects, much minished, serum interspaces, much cleared up. 



5. Consumptive blood, 2d stage before treatment by animal food diet ; dry, 

 l-16th inch, 500x. Shows red blood muddled and confused. Intersjjaces 

 crowded with spores, larger spore collects larger white corpuscles than in 4- 



6. Human blood, consumvtive, 3d stage ; dry, l-50th inch, 2,000x. 

 Shows three white corpuscles enlarged with ento-phytal growths. Where a 

 mass of broken substance appears are the remains of a fourth white corpuscle 

 that ruptured by the sun's heat in the act of taking. 



7. Same as preceding, but taken with a higher power, namely, the l-75th 

 inch, 3,000x. The first ever taken with this objective ; 1876. 



8. Human blood consumptive, 3d stage ; dry, l-16th inch, 450x. Fibrin 

 filaments and spores. 



9. Ditto — 3d stage, 1-I6th inch, 450x. Wet, but dried by keeping. Vac- 

 uoles or gas bubbles traversed by beatled filaments and dotted with spores. 

 On very close examination the main field is seen to be occupied by red glob- 

 ules faintly outlined in the serum ; by white spores near the center is a black 

 straight submerged mycelial filament probably a syphilitic complication. 



10. Consumptive blood — advanced stages. 1-lOth, 4 system, 180° ang. 

 aperture. Massed red globules ; Fibrin filaments, spores. 



11. Ditto, l-50th inch, l,450x. Roleaux attempted. Fibrin filaments. 

 Large mass of spores of vinegar yeast or mycoderma aceti. 



12. Ditto, 1-lOth inch, 450x. Spores in and about the red globules. 



13. Ditto. Enlarged white corpuscles. 



14. Ditto. Spores. 



15. Ditto, 1-lOth inch. Foreign substance, probably a hair soaked in 

 sweat. Enlarged white corpuscle. Attempts at nummulation, spores. 



16. Ditto, spores, spore collects. Fibrin filaments, enlarged white cor- 

 puscles. 



17. 1-lOth inch. Soap ; showing filaments that might be taken for my- 

 celia. A comparative study suggested by a doubter. 



18. Fibrin filaments in consumptive blood ; spore well brought out. 

 Mass opposite the three red corpuscles is foreign. Some would call the small 

 red corpuscle, the third corpuscle. We regard it as an imperfectly developed 

 red disc. l-50th inch. 



19. Consumptive blood, ^ inch, 200x. Vacuoles or gas bubbles ; spores. 



