Organisms Consisting of One Cell 



279 



only a tithe of which has been used in this review, it is hard 

 to see how any one can avoid recognizing that the fact that 

 the animals usually consist of a single cell, is really of 

 secondary importance. Neither descriptively nor interpre- 

 tatively (if one insists on making a sharp distinction between 

 the two) do the generalized elements cytoplasm and nucleus, 

 lield to be the irreducible minima of the cell, throw any but 

 the vaguest, most general light on innumerable of the struc- 

 tures and processes brought under notice. 



REFERENCE INDEX 



1. 

 2. 

 3. 

 4, 



6. 



7. 



8. 



9. 

 10. 

 11. 

 12. 

 13. 

 14. 

 15. 

 16. 

 17. 

 18. 

 19. 

 20. 

 21. 

 22. 

 23. 

 24. 

 25. 

 26. 



PI. 



Lang 



Hartog 



Jennings 



Haeckel (1884-87) 

 Haeckel, (1884-87) 



120, fig 



Cushman 



Calkins ('10) 



Calkins ('10) 



Stohr 



Maurer 



Giinther 



Sharp 



Sharp 



Sharp 



Sharp 



Sharp 



Sharp 



Sharp 



Sharp 



Sharp 



Calkins ('10) 



Shipley and Macbride . . 



Piitter 



Kofoid and Christiansen. 



Haeckel ('03) 



Minchen ('12) 



3 27. Ward 159 



138 28. Meyer 146-148 



114 29. Beneke 789 



1664 30. Moore 352 



31. Moore 353 



9 32. Dobell 505 



1 33. Marshall, C. E 648 



91 34. Burnet 61 



79-86 35. Balfour ill 



36 36. Balfour 1 



1102 37. Balfour 2 



553 38. Balfour 10 



67 39. Korschelt 



72 ('95) 



77 40. Korschelt and 



80 ('02) 1 



82 41. Korschelt and Heider 



102 ('02) 5 



45 42. Macbride 1 



87 43. Van Beneden 325 



100 44. Meisenheimer 251 



43 45. Johnson 518 



28 46. Johnson 501 



267 47. Johnson 503 



34 48. Johnson 511 



492 49. Haecker 650 



79 



and Heider 



Heider 



2 



