| Lndex 
Nature, 
- June 13, 1907 
Young (W. H. and G. C.), the Theory of Sets of Points, 
193 
Young (W. J.), the Organic Phosphorus Compound formed 
by Yeast Juice from Soluble Phosphates, 477; Influence 
of Sodium Arsenate on the Fermentation of Glucose by 
Yeast-juice, 118 
Youssoufian (M.), Alcoholysis of Cocoa Butter, 143 
Yule (G. Udny), Mean or Median, 534 
Zambonini (F.), Crystals of Galena deposited at Eruption of 
Vesuvius in April, 158; Striiverite, a New Mineral, 574 
Zammarchi (Prof.), the Perseids, 1906, 111 
Zander (Dr. Enoch), Filtering Apparatus attached to the 
Gill-rakers of Deep-sea Fishes, 348 
Zeeman (Prof. P.), Recent Progress in Magneto-optics, 
Lecture at Royal Institution, 138, 160 
Zeleny (John and Anthony), YVemperatures obtainable by 
the Use of Solid Carbon Dioxide under Different Pres- 
sures, 230 
Zellen, die chemische Energie der lebenden, 
Loew, 508 
Zinc, Céruse et Blanc de, M. G. Petit, 509 
Zodiacal ‘Light, the, Prof. Barnard, 16 
Zoology : Zoologischer Jahresbericht fiir 1905, 6; the Cam- 
bridge Natural History, Vol. i., Protozoa, Prof. Marcus 
Hartog, Porifera (Sponges), Igerna B. L. Sollas, Ccelen- 
terata and Ctenophora, Prof. S. J. Hickson, Echinoder- 
mata, Prof. E. W. MacBride, F.R.S., 31; History and 
Origin of Zoological Gardens, J. von Pleyel, 62; the 
Papillary Ridges and Papillary Layer of the Skin of 
the Hand and Foot of Lemurs, Dr. Walter Kidd, 83; 
a Pleural Cavity Lacking in the Indian Elephant, Prof. 
Schmaltz, 84; Has the African Elephant a Pleural 
Cavity? Alfred Giard, 407; the History of the Collec- 
tions contained in the Natural History Departments of 
the British Museum, 125; Indo-Malay Slow-lorises, 
M. W. Lyon, 135; the Great Anteater of Central 
America (Myrmecophaga centralis), M. Ward Lyon, 156; 
Zoological Society, 166, 238, 359, 406, 478, 527, 574; 
the Lesser Horseshoe Bat, Rhinolophus hipposiderus, 
T. A. Coward, 166; Skulls of Horses from the Roman 
Fort at Newstead, near Melrose, and Observations on 
the Origin of Domestic Horses, Prof. J. C. Ewart, 190; 
Craniometric Observations on the Skull of Equus 
prejvalski and other Horses, Prof. O. Charnock Bradley, 
190; Surgical Anatomy of the Horse, John T. Share- 
Jones, 337; le Cheval, H. J. Gobert, 337; the Origin of 
the Modern Horse, Prof. J. C. Ewart, 612; Coat Colour 
in Horses, Prof. J. C. Ewart, 622; Verhandlungen der 
deutschen zoologischen Gesellschaft, 1906, 246; the 
Mammals of Great Britain and Ireland, J. G. Millais, 
271; the North American Fresh-water Medusa of Micro- 
hydra, Edward Potts, 324; the Urus or Aurochs, Prof. 
A. Mertens, 349; das Tierreich, Crustacea, Rev. 
T. R.. R. Stebbing, F.R.S., 365; Origin of the Lateral 
Horns of the Giraffe in Foetal Life, Prof. E. Ray 
Lankester, 406; Rudimentary Antlers in the Okapi, Prof. 
E. Ray Lankester, 406; New Amazonian Tree-frog, Hyla 
resinifictrix, Dr. E. A. Goeldi, 406; Camp-fires in the 
Canadian Rockies, Dr. William T. Hornaday, 410; the 
Forest-pig of Central Africa, Prof. Henry H. Giglioli, 
414; Scottish Tardigrada, James Murray, 455; Arctic 
Tardigrada, James Murray, 455; English Domestic Cats, 
R. I. Pocock, 478; Report on the Deaths among the 
Mammals and Birds in the Society’s Menagerie during 
1906, Dr. C. G. Seligmann, 478; Marsupials or Creo- 
donts? W. J. Sinclair, 498; on the Extinct Emeu of the 
Small Islands off the South Coast of Australia and 
Probably Tasmania, Prof. Henry H. Giglioli, 534; 
Meristic Homologies in Vertebrates, J. S. Kingsley, 541; 
the Zoological Record, 557; the Foetal Dentition of the 
Australian Duclbill or Platypus (Ornithorhynchus), 
Profs. J. T. Wilson and J. P. Hill, 566; Flat-worm 
Scutariella didactyla from Montenegro, Prof. Al. 
Mrazek, 590; Problems of an Island Fauna, C. B. 
Moffat, 591; Habits of the Malay Tapir, H. N. Ridley, 
594; the Menagerie at the Botanic Gardens, Singapore, 
H. N. Ridley, 594 
Zurhellen (W.), the Spectroscopic Binary o Leonis, 378 
Prof. Oscar 
INDEX TO LITERARY SUPPLEMENT. 
Anatomy : das Cerebellum der Saugetiere, eine vergleichend 
anatomische Untersuchung, Prof. Louis Bolk, Prof. J. S. 
Macdonald, Supp. to March 14, ix 
Bolk (Prof. Louis), das Cerebellum der Saugetiere, eine 
vergleichend anatomische Untersuchung, Supp. to March 
14, ix 
Burrard (Lieut.-Colonel S. G., F.R.S.), Auxiliary Tables 
to Facilitate the Calculations of the Survey of India, 
Supp. to March 14, viii 
Caven (Dr. R. M.), Systematic Inorganic Chemistry from 
the Standpoint of the Periodic Law, Supp. to March 
14, iv 
Cerebellum der Sdugetiere, das, eine 
anatomische Untersuchung, Prof. Louis 
J. S. Macdonald, Supp. to March 14, ix 
Chemistry : Introduction to General Inorganic Chemistry, 
Prof. Alexander Smith, Prof. Arthur Smithells, F.R.S., 
Supp. to March 14, iv; Systematic Inorganic Chemistry 
from the Standpoint of the Periodic Law, Dr. R. M. 
Caven and Dr. G. D. Lander, Prof. Arthur Smithells, 
F.R.S., Supp. to March 14, iv; Photography for Students 
of Physics and Chemistry, Prof. Louis Derr, Supp. to 
March 14, vi 
Chisholm (Geo. G.), a Progressive Course of Comparative 
Geography on the Concentric System, P. H. L’Estrange, 
Supp. to March 14, v; Philips’ Progressive Atlas of 
Modern Geography, Supp. to March 14, v; Stanford’s 
Octavo Atlas of Modern Geography, Supp. to March 
14, V 
vergleichend 
Bolk, Prof. 
Derr (Prof. Louis), Photography for Students of Physics 
and Chemistry, Supp. to March 14, vi 
Differential Equations, Theory of, Dr. A. R. Forsyth, 
F.R.S., Supp. to March 14, x 
Fauna of the Tay Basin and Strathmore, a, J. A. Harvie- 
Brown, Supp. to March 14, vii 
Forsyth (Dr. A. R., F.R.S.), Theory of Differential Equa- 
tions, Supp. to March 14, x 
Geodesy: Auxiliary Tables to Facilitate the Calculations 
of the Survey of India, Lieut.-Colonel S. G. Burrard, 
F.R.S., Supp. to March 14, viii 
Geography: a Progressive Course of Comparative Geo- 
graphy on the Concentric System, P. H. L’Estrange, 
Geo. G. Chisholm, Supp. to March 14, v; Philips’ Pro- 
gressive Atlas of Comparative Geography, Geo. G. 
Chisholm, Supp. to March 14, v; Stanford’s Octavo 
Atlas of Modern Geography, Geo. G. Chisholm, Supp. 
to March 14, v 
Harvie-Brown (J. A.), a Fauna of the Tay Basin and 
Strathmore, Supp. to March 14, vii 
India: Auxiliary Tables to Facilitate the Calculations of 
the Survey of India, Lieut.-Colonel S. G. Burrard, 
F.R.S., Supp. to March 14, viii 
L’Estrange (P. H.), a Progressive Course of Comparative 
Geography on the Concentric System, Supp. to March 
14, V 
Lander (Dr. G. D.), Systematic Inorganic Chemistry from 
the Standpoint of the Periodic Law, Supp. to March 
14, iv 
