4 Arachn. 
XI. Arachnida.— Gigantostraca. 
[1917] 
GIGANTOSTRACA. 
' I.— TITLES. 
Burling, L. D. Protichnites and 
Glimactichnites ; a critical study of 
some Cambrian trails. Amer. J. Sci. 
New Haven Conn. ser. 4 44 1917 
(387-398) figs. 1 
Burling, L. IX Was the Lower 
Cambrian Trilobite supreme ? Ottawa 
Nat. 31 1917 (77-79) figs. 2 
Holmgren, N. Zur vergleichenden 
Anatomie dos Gehirns von Polyehaeten, 
Onychophoren, Xiphosuren, Arach- 
niden, Crustaceen, Mvriopoden und 
Insekten. Vorstudien zu einer Pliylo- 
genie der Arthropoden. Stockholm 
Vet.-Ak. Handl. 50 No. 1 1916 (303 pp.) 
12 pis. $4 text figs. 3 
Nukada, S. fiber die Automatic 
und die Koordination des Herzens. 
(Biologische Untersuchungen fiber das 
Herz des Limuhts longispina). Tokyo 
Mitt. med. Fak. 19 1917 (1-164) 21 pis. 
4 
Raymond, P. E. New and old 
Silurian Trilobites from Southeastern 
Wisconsin, with notes on the genera 
of the Illaenidae. Cambridge Mass. 
Bull. Mus. Comp. Zool. Harvard 60 
No. 1 1916 (1-41) 4 pis. 5 
Raymond, P. E. Beecher’s classifi- 
cation of Trilobites, after twenty years. 
Amer. J. Sci. New Haven Conn. ser. 
4 43 1917 (196-210) figs. 6 
Stainier, X. On a new Eurypterid 
from the Belgian Coal Measures. 
London Q. J. Geol. Soc. 71 1917 (639- 
647) pi. liii 7 
Walcott, C. I). Cambrian geology 
and paleontology, iv. No. 2. The 
Albertella fauna in British Columbia 
and Montana. Washington D.C. 
Smithsonian Inst. Misc. Collect. 67 
No. 2 1917 (9-59) pis. i-vii. 8 
Walcott, C. I). • Cambrian geology 
and paleontology, iv. No. 3. Fauna 
of the Mount , Whyte formation. 
-Washington D.C. Smithsonian Inst. 
Misc. Collect. 67 No. 3 1917 (61-114) 
pis. viii-xiii. 9 
II.— SUBJECT INDEX 
N.B. — The number in Clarendon , when 
not referring to a Volume, refers to 
the list of Titles. 
GENERAL = 2803-2823. 
Structure, Heart, Limulus ; Nukada, 
4. — Nervous System, Limulus ; Holm- 
gren, 3. 
Structure and classification, Trilo- 
bita } Raymond, 6. 
Physiol, of heart, Limulus ; Nukada, 
4. 
Mutilation, Trilobita ; Burling, 2. 
DISTRIBUTION = 2827. 
. (Geological.) 
Cambrian. 
Tracks possibly of Gigantostraca ; 
Burling, 1 : Lower Cambrian, Brit. 
Columbia, Trilobita. ; Walcott, 9 : 
Middle Cambrian, Canada and Montana, 
Trilobita ; Walcott, 8. 
Silurian. 
Wisconsin, Trilobita ; Raymond, 5. 
Carboniferous. 
Coal measures, Belgium, Eurypterus ; 
Stainier, 7. 
