Papers (continued). 
Page 
. Observations made to ascertain whetber any Relation subsists between the Seasonal 
Assumption of the “Eclipse” Plumage in the Mallard (Anas boscas) and the 
Functions of the Testicle. C. G. Suriemany, F.Z.8., and 8. G. Suarrock. (Text- 
Frepuric Woop-Jonus, D.Sec., F.Z.8. (Plates I,-I1I., and Vext-figures 1-15.) ...... 
figures 1-6.) ° O20 2020000 Pee ee se se ses ere soseses0e eso 2520298 29 8 23 
3. The Possible Connection between Spindle-Length and Oell-Volume. By C.F. U. Muzx, 
Mises -E.:8:, 1.2.8. ~ (Plates TP. 6 VE) wees vs lors on vice Foddne CE cohOko pA amo oO GOeS 45 
4, Contributions to a Study of the Dragonfly Fauna of Borneo.—Part IJ. The Gomphinz 
and. Chlorogommphine. By F. F. Laipuaw, M.A., F.Z.8. (Plate I.) ............ ol 
5. Note on an imperfectly developed specimen of the Sea-Urchin (Hehinus esculentus). By 
H. C. Cuapwicr, A.L.S. (Text-figures 1-4.)...... Se ae SARA MRI Sires NT or a 65 
6. Spiders from the Montebello Islands, ‘ By H. R. Hoaa, M.A.,F.Z.8. (Plates I-III). 69 : 
7. On the Nests of Pseudoscorpiones: with Historical Notes on the Spinning-Organs and 
Observations on the Building and Spinning of the Nests. By H. Wauuis Knew, F.Z.8.. 93 
8, The Structure and Life-History of a Tapeworm (Ichthyotenia filicollis Rud.) Parasitic 
in the Stickleback. By F. J. Muaeitr, M.Sc. (Birm.), Board of Agriculture and 
Fisheries Research Scholar, Eleni of Birmingham. (Plates I.-IV., and Text- 
figures 1-5.).......... RGca ROO OUOS HOO COD GOO TU cU AMOO SCOR Co Kt Ob GOe rein co 113 
9. Trematode Parasites from Animals dying in the Zoological Society’s Gardens during 
1911-1912, By Wiux1am Nicoxt, M.A., D.Sc., M.D., F.Z.8. (Plates I-IV.) noe. JB!) 
10. On the Skull of a Pariasaurian Reptile, and on the Relationship of that Type. By 
D. M. S. Watson, M.Sc., F.Z.8., Lecturer on Vertebrate a esa gy) in University 
College, London. @aceeae Tf) tion a eaoc AG SIS eS eM Rei cer aASa ras Amare ns 155 
11. Report on the Deaths which occurred in the Zoological Gardens during 1918, together 
f with a List of the Blood-Parasites found during the Year. By H.G, Privmar,l.R.S., . 
Mie pk Tut OLOIBt ee O) PME SOCIOL) vier a) a/ctelin'elm =) sia Sic. ¢atclevanicleis cs s'las stelmjetsla = ojnc se eels 181 
12. Some Phases in the Reproductive History of the Female Mole (Zalpa europea). By 
191 
