262 
C. F. U. MEEK. 
Meek, C. F. U. — “ The Correlation of Somatic Characters and Chromatin 
Rod-lengths, being a Further Study of Chromosome Dimen- 
sions,” ‘ Journ. Linn. Soc. Zool.,’ vol. xxxii (1912). 
“ The Problem of Mitosis,” ‘ Quart. Journ. Micr. Sci:,’ vol. 58 
(1913). 
Rhumbler, L. — “ Die mechanische Erkliirung der Almlichkeit zwischen 
magnetischen Kraftliniensystemen und Zellteilungsfiguren,” 
‘ Arch. f. Entwick.-mech.,’ Bd. xvi (1903). 
N.B. : A comprehensive list of publications dealing with mitotic pheno- 
mena is given in the bibliography of my paper, “ The Problem of 
Mitosis.” 
EXPLANATION OF PLATE 17, 
Illustrating Mr. C. F. U. Meek^s paper, The Metaphase 
Spindle in the Spermatogenetic Mitoses of Forficula 
Auricularia.^^ 
Figs. 1-4. — Polar views of secondary spermatocyte metaphase, showing 
all chromosomes. Specimen A. 
Fig. 5 . — Ditto. Specimen c. 
Fig. 6. — Lateral view of equatorial plate in late secondary sperma- 
tocyte metaphase, showing constriction of bivalent chromosomes. 
Specimen a. 
Fig. 7. — Lateral view of equatorial plate at conclusion of secondary 
spermatocyte metaphase, showing univalent daughter-chromosomes 
resulting from completed constriction of dyads. Specimen A. 
Fig. 8. — Lateral view of equatorial plate in earliest secondary sperma- 
tocyte anaphase, showing divergence of daughter-chromosomes. 
Specimen A. 
Fig. 9. — Ditto, later. Specimen A. 
Fig. 10. — Ditto, later. Specimen a. 
Fig. 11. — Lateral view of equatorial plate in late secondary sperma- 
tocyte metaphase, corresponding with fig. 6. Specimen a. 
Fig. 12. — Lateral view of equatorial plate at conclusion of secondary 
spermatocyte metaphase, corresponding with fig. 7. Specimen a. 
Fig. 13. — Lateral view of equatorial plate in earliest secondary sperma- 
tocyte anaphase, corresponding with fig. 8. Specimen A. 
