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THE AMERICAN NATURALIST [Vol. XLV 



4. Light mulatto; abdominal operation by Dr. Stone; 

 95 per cent, alcohol fixation ; a shade darker than No. 3. 



5. Blond; abdominal operation by Dr. Stone; 95 per 

 cent, alcohol fixation. 



6. Pathologically pigmented (grayish yellow) skin of 

 white individual; postmortem (thyroid adenomata) by 

 Dr. Marshall; 95 per cent, alcohol fixation. 



7. Brunet; abdominal operation by Dr. W. H. Good- 

 win (adjunct professor of surgery) ; 95 per cent, alcohol 

 fixation. 



8. Light mulatto male (age 80) ; postmortem (acute 

 cystitis) by Dr. W. Thalhimer (instructor in pathology) ; 

 Zenker's fixation; color — yellow, 10 per cent.; white, 17 

 per cent. ; red, 30 per cent. ; black, 43 per cent. 



9. Pure negro; abdominal operation by Dr. Stephen 

 H. Watts (professor of surgery)— 95 per cent, alcohol 

 fixation. 



10. Brown mulatto boy; abdominal operation by Dr. 

 S. H. Watts ; 95 per cent, alcohol fixation. 



11. Brunet; abdominal operation by Dr. S. H. Watts; 

 95 per cent, alcohol fixation. 



12. Brunet female (gray) ; postmortem (goitre and 

 old age) by Dr. W. Thalhimer; Zenker fixation. 



13. Dark blond male— age 30 years— ("cross between 

 blonde and brunet"); from postmortem (pyaemia and 

 perinephric abscess) by Dr. W. Thalhimer; 95 per cent, 

 alcohol fixation (Fig. 3). 



14. Pure negro; abdominal operation by Dr. S. H- 



