10 Arachn . 
X. Arachnida. 
[1921] 
121. — Ward, A. B. and Gallagher, 
B. A. Diseases of domesticated birds. 
New York 1920 pp. 198 202 214. 
122. — Wells, B. W. New United 
States Zoocecidia. Psyche Boston 
Mass. 28 1921 pp. 35-45. 
123. — Wenninger, F. Notes on 
Miranda aurantia. Amer. Midi. Nat. 
Notre Dame Indiana 5 1917 pp. 141- 
147. 
124. — Wilson, W. H. Note on the 
characters of Scorpion venom with 
demonstration of a method of obtaining 
the same. Bui. Inst. Egypt Cairo 3 
1921 pp. 67-73. 
II. — SUBJECT, INDEX. 
N.B . — The number in Clarendon , when 
not that of a Volume , refers to the 
list of Titles. 
GENERAL, ECONOMICS. 
Bibliography. — Reimoser, 88; 
Strand, 104; 109. 
Nomenclature. — Strand, 106 ; 
Phthiracaridae, Oudemans, 81 ; 
Strand, 111 ; Trouessart& Berlese, 
112 , 
Collections. — Roewer, 94. 
Technique. — Rearing of ticks , Cun- 
liffe, 24 ; Collection and examination 
of Sarcoptes , Buxton, 17 ; Collecting 
and preserving spiders, Pickaud-Cam- 
bridoe, 85; Scorpiones , Wilson, 124. 
Economics (see also Parasitism). — 
Newstead & Morris, 78 ; Newstead 
& Duvall, 77 ; Bates, Dunn & St. 
John, 3; Ixodes holocyclus carrying 
Tick Paralysis, Dodd, 30 ; transmitting 
“ louping-ill ” in sheep, Ixodes ricinus, 
Stockman, 100 ; Causing itch in man, 
Pediculoides ventriculosus, O’Connor, 
80 ; Bites fatal to man, “ Black spider,” 
Lactrodectes, Reese, 87. 
STRUCTURE. 
General. — Tardiyrada, Baumann, 11 ; 
Ornithodorus moubata , Cunliffe, 24 ; 
Section Pterotricha, de Dalmas, 26 ; 
Telema tenella, Page, 38 ; Scorpionidae, 
Herrera, 49 ; Acarapis woodi, Hirst, 
53 ; Acarids of grain, Newstead & 
Duvall, 77; Newstead & Morris, 
78 ; forage mites, Newstead & 
Morris, 79 ; Demodicidae, Oudemans, 
83 ; Itch-mites, Stekhoven, 99 ; Acari, 
Vitzthum, 118 ; Sarcoptes scabei var. 
equi, Buxton 17. 
Special.— Body-segments, Oribatoi- 
dea, Oudemans, 82 ; Digestive system, 
Scorpionidae, Herrera, 49 ; Mouth- 
parts, etc., Oribatoidea, Oudemans, 82 ; 
Nervous System, Scorpionidae, Her- 
rera, 49 ; Organs of taste, Araneae, 
Schaxel, 97 ; Reproductive system, 
Scorpionidae, Herrera, 49 ; Genital 
v organs, Integument, Appendages Ma- 
crobiotus, Baumann, 11 ; Genital organs, 
Araneae, Gerhardt, 45 ; Femalo 
genital organs, etc., Notoedrcs, 
Stekhoven, 99 ; Respiratory systom, 
Telema tenella , Page, 38 ; Trachaeal 
tubes, Sarcopiidae and Listrophoridae, 
Hirst, 54. 
PHYSIOLOGY. 
Gerhardt, 45 ; Schaxel, 97 ; Stek- 
hoven, 99; Wilson, 124. 
DEVELOPMENT. 
Buxton, 17 ; Cunliffe, 24 ; New- 
stead & Duvall, 77 ; Newstead & 
Morris, 78 ; Senevet, 98 ; Stekhoven, 
99. 
ETHOLOGY. 
General. — Habits, “ Chiggers ” ( Tram- 
bidiidae), Ewing, 35 ; Acarids of grain, 
Newstead & Duvall, 77 ; Proportion 
of sexes, fertilisation, Notoedres, Stek- 
hoven, 99 ; Breeding, Ornithodorus 
moubata, Cunliffe, 24 ; Copulation, 
Araneae, Gerhardt, 45 ; Food of 
ticks, Cunliffe, 24 ; Spider drinking 
milk, Krausse, 65 ; Feeding, burrow- 
ing, Ornithodorus saviqnyi, Drake- 
BrockmaN, 31 ; Spiders ( Dolomedes ) 
feeding on small fish, Barbour, 2 ; 
Manner ‘of progression, feeding habits, 
Notoedres, Stekhoven, 99 ; Nests, 
