390 
B. MELLAND. 
Fig. 7. — Lobster fibre, gold chloride ; isolated portion of a fibre, network 
pulled out of shape. Exactly similar networks are seen in the Frog and 
Crayfish. 
Fig. 8. — Frog, gold method; network arranged typically, and showiug 
transverse striping. 
Fig. 9. — Rat, gold chloride ; longitudinal view of portion of a fibre. (Pre- 
paration by C. F. Marshall). 
Fig. 10. —Lobster, gold chloride, splitting into fibrils. 
Fig. 11. — Frog. Transverse section of the frozen fibre, stained by the 
gold method. 
FTg. 12. — Dytiscus, gold method ; isolated portion of the network. 
Fig. 13. — The same, more highly magnified. (Zeiss, F obj , No. 5 eyepiece.) 
Fig. 14. — The same, showing refracting effect of the network, l . Lower 
focus, u. Upper focus. 
Figs. 15 and 16. — Fibres of Bee, treated with acetic acid, then Kieiuen- 
berg’s hsematoxylin. 
Fig. 17. — Fibre of Bee, treated with acetic acid, then watery solution of 
logwood. The transverse networks seen more or less obliquely. 
Fig. 18. — Fibre of Bee, prepared with osmic acid, shows a fixed wave of 
contraction. 
Fig. 19. — Living fibre of Bee, showing longitudinal view of network 
(Jj immersion obj). 
Fig. 20. — Living fibre of Bee, transverse networks seen somewhat obliquely. 
Fig. 21.— Portion of a fibre of Dytiscus, stained in hsematoxylin after the 
action of spirit. Shows sarcous elements. 
Where not otherwise stated, the drawings were made from Zeiss, D. obj.. 
No. 5 occ. 
