5 Arachn. 
Subject Index. — Gigantostuaoa. 
2827 
Richter, Rudolf. Das Uoborgreifcn 
der pelagischen Trilobitengattungen 
Tropidocoryphe und Thysanopeltis in 
das normalo Rheinischo Mitteldevon 
der Eifel (und Belgiens). Centralbl. 
Min. Stuttgart 1914 1914 (85-96) 2 
textfigs. 18 
Richter, Rudolf. Ueber das Hy- 
postom und einige Arten der Gattung 
Cyphaspis. Centralbl. Min. Stuttgart 
1914 1914 (306-317) 5 figs. 19 
Savage, T. E. Stratigraphy and 
paleontology of the Alexandrian series 
in Illinois and Missouri. Part 1. 
Illinois Geol. Surv. Bull. Urbana No. 
23 1913 (1-124) pis. i-vii. 20 
Savage, T. E. Some interesting new 
species of arthropods from Devonian 
strata of Illinois. Amer. J. Sci. New 
Haven Conn. 35 1913 (149-152) ff. 1-5. 
21 
Shand, S. J. On the occurrence of 
the Brazilian Trilobite Pennaia in the 
Bokkeveld beds. Johannesburg Trans. 
Geol. Soc. S. Afr. 17 1914 (24-28) pi. vi. 
22 
Slocum, Arthur Ware. New Trilobites 
from the Maquoketa beds of Fayctto 
County, Iowa. Chicago ' 111. Field 
Cohmib. Mus. Pub. Geol. Sor. 4 No. 3 
(43-83) pis. xiii-xviii fig. 23 
Twenhofel, W. H. The Anticosti 
Island Faunas. Ottawa Geol. Surv. 
Can. Mus. Bull. No. 3 1914 (1-35) 1 pi. 
24 
Weller, Stuart. A report on Ordo- 
vician fossils collected in Eastern Asia 
in 1903-04. Washington D.C. Carnegie 
Inst. Pub. No. 54 (Research in China 
3) 1913 (277-294) pis. xxv & xxvi. 25 
Walcott, Charles D. Cambrian geology 
and paleontology, 2. No. 13. Dikelo - 
ceplialus and other genera of the 
Dikelocephalinae. Washington Smith- 
sonian Inst. Misc. Collect. 57 1914 (345- 
412+21) pis. lx-lxx ff. 13-20. 26 
Walcott,* Charles D. Cambrian 
geology and paleontology. 3. No. 1. 
The Cambrian faunas of eastern Asia. 
Washington Smithsonian Inst. Misc. 
Collect. 64 1914 (1-75) pis. i-iii ff. 1-9. 
27 
II—S OBJECT INDEX. 
N.B. — The numerals in Clarendon, when 
not referring to a Volume, refer to 
Titles. 
GENERAL = 2803 2823. 
Bibliography ; Lucas, 13. 
Structure ; Cotronei, 6 : Demoll, 7 : 
Kassianow, 11 : Reed, 17. 
Development, Trilobites ; Illing Rep. 
Brit. Ass. 1913 1914 p. 499 : Raymond, 
14, 15. 
DISTRIBUTION - 2827. 
(Geological.) 
Cambrian, Ozarkian, Ordovician ; 
Walcott, 26. 
Cambrian. 
North America, Trilobita ; Raymond, 
14 : Eastern Asia, Trilobita ; Walcott, 
27. 
Ordovician. 
Scotland, Trilobita ; Reed, 16 : 
Canada, Trilobita ; Foerste, 8 : Twen- 
hofel, 24 : Kentucky, Trilobita ; Foerste, 
9 : Iowa, Trilobita ; Slocum, 23 ; China, 
Trilobita ; Weller, 25. 
Silurian. 
U.S., Trilobita ; Savage, 20. 
Devonian. 
Europe, Trilobita ; Richter, 18, 
19 : S. Africa, Trilobita ; Shand, 
22 : Canada, Trilobita ; Clarke, 3 : 
Illinois, Trilobita ; Savage, 21 : Michi- 
gan, Trilobita ; Grabau, 10 : S. Brazil 
and Falkland Ids., Trilobita ; Clarke, 4. 
Carboniferous. 
Scotland, Trilobita ; Corr, 5 : Eng- 
land, Trilobita ; King, 12 : Nebraska, 
Eurypterida ; Barbour, 1. 
Trias sic. 
Alsace, Xiphosura ; Bill, 2. 
