Nature 

 September 28 



1 

 i, 1911J 



Index 



IX 



their Varieties, 210; Life Histories of Familiar Plants, 

 John J. Ward, 211 ; Salicornia, Dr. C. E. Moss, 

 235, 472 ; E. G. Salisbury, Dr. Ethel de Fraine, 

 235 ; Papers on Systematic Botany, 257 ; Australian 

 Indigenous Plant Life, and Unique Tenacity of 

 Life among Grasses, F. M. Bailey, 265 ; (i) Archae- 

 opteris simplex, sp. nov., (2) Is Archeopteris Dawson a 

 Pteridosperm ? Prof. T. Johnson, 269; Stinging Tree, 

 Laportea crenulata, H. H. Haines, 280 ; a Forest Flora 

 of Chota Nagour, H. H. Haines, 306 ; das Pflanzenreich, 

 Orchidacea2, Monandrae, Dendrobiinae, Fr. Kranzlin, 308 ; 

 the Liverworts, British and Foreign, Rt. Hon. Sir 

 Edward Fry, G.C.B., Agnes Fry, 343 ; Inheritance of 

 Row Numbers in Maize Ears, J. Burtt-Davy, 347 ; die 

 Samenpflanzen (Blutenpflanzen, Phanerogamen), Prof. K. 

 Wilhelm, 378; Maryland Weather Service, Plant Life, 

 F. Shreve, M. A. Chrysler, F. H. Blodgett, F. W. 

 Besloy, 412 ; Wild Flowers as they Grow, Photo- 

 graphed in Colours dil'ect from Nature, H. Essenhigh 

 Corke, G. Clarke Nuttall, 413 ; Recueil d'Qiuvres 

 de L^o Errera, 413 ; Botanical Research at Para- 

 deniya, 415 ; Plant Modifications on High Plateaux 

 in Andes. Mr. K. Fiebrig, 431 ; Flora in Middle Siam, 

 Dr. C. C. Hosseus, Vegetation of Sand Deposits of 

 Illinois, Dr. H. A. Gleason, Phytogeographical Sketch 

 of Andes in S.E. Bolivia, K. Fiebrig, 431 ; Supposed 

 Production of New Plant Forms by the Method cf 

 Traumatisms, P. Becquerel, 439 ; die Vegetation der 

 Erde, Sammlung von Monographien, die Pflanzenwelt 

 Afrikas, Prof. A. Engler, 441 ; die taxonomischen Grenzen 

 der Art und ihrer Unterabteilungen, Versuche einer 

 genauen Definition der untersten systematischen 

 Kategorien, Andreas Semenov-Tian-Shansky, 444 ; Apple 

 Blossoms and Retardation of Flow of Sap, F. C. Con- 

 stable, 448 ; Fresh-water Algae Collected in the S. 

 Orkneys by Mp. R. N. R. Brown, Dr. F. E. Fritsch, 

 471 ; I.ehrbuch der Botanik fiir hohere Lehranstalten, 

 Prof. O. Schmeil, 482 ; Protective Value of the Sticky 

 Hairs on Young Leaves and Shoots, Oswald H. Latter, 

 484 ; Death of Dr. Harry Bolus, 490 ; South African 

 Orchids, Dr. Harry Bolus, 490 ; Etudes Glaciaires 

 G6ographiques et Botaniques dans le Massif des Grandes 

 Rousses, M. Flusin, M. Jacob, M. Offner, 499; Botanical 

 Research in Ceylon, Prof. W. R. Dunstan, F.R.S., 518; 

 Note on Sterculia alata, Roxb., var. irregulatis, a Re- 

 markable Instance of Leaf Variation, W. W. Smith, 

 507; a Text-book of Botany, J. M. Lowson, 515; Effect 

 of Light on Fruiting of " Blackfellow's Bread " 

 {Polyporus inyltttae), A. J. Ewart, 1^76 



Bouchard (C), the Toxic Theory of Sleep, loi. 



Boulengef (E. G.), Varieties of the Spotted Salamander, 66 



Boulenger (G. A.), a Collection of Fishes from the Lake 

 Ngami Bajin, Bechuanaland, by Mr. R. B. Woosnam, 66 



Bourne (A. A.), the Student's Arithmetic, 377 



Bourne (Prof. G. C, F.R.S.), Morphology of the Group 

 Neritoidea of the Aspidobranch Gastropods, 472 



Bousfield (W. A. and W. Eric), the Specific Heat of Water, 

 32 



Bouvier (E. L.), Decapod Crustacea Collected by the 

 Princesse Alice, 167; Pycnogonides of the Pourquoi-Pas? 



405 

 Bowditch (C. P.), the Numeration, Calendar System, and 



Astronomical Knowledge of the Mayas, 307 

 Bowen (J. E.), Measurement of Contact Differences of 



Potential, 607 

 Boyce (Sir Rubert, F.R.S.), Obituary Notice of, 589 

 Brady (Dr. G. S.), Marine Ostracoda from Madeira, 200 

 Bragg (Prof. W. H.), Energy Transformations of X-Rays, 



470 

 Brauner (Prof. Bohuslav), Sir J. J. Thompson's New 



Method of Chemical Analysis, 554 

 Bread, Standard, 313 

 Breath Figures, the Rt. Hon. Lord Rayleigh, O.M., 



F.R.S., 416; Dr. John Aitken, F.R.S., 516; J. W. 



Giltay. 585 

 Breckenridge (W. E.), Shop Problems in Mathematics, 39 

 Brewster (G. W.), a Geometry for Schools, 479 

 Bridol (M.), Meliatine, 609 



Briggs (H.), Effects of Errors in Surveying, 200 

 Britain, Early : Roman Britain, E. Conybeare, 109 

 British Association, Provisional Programme in Chemistry, 



Prof. J. Walker, F.R.S., 585 



British Isles, Geographical Diagrams and Land Forms of 



the, with Questions, Statistics, and Tables, H. J. Snape, 



42 

 British Psychological Society, 125, 471 

 Broca (A.),_ Measurement of Geodetic Angles by the Method 



of Repetition, 303 

 Brodie (Prof. T. G.), Croonian Lecture, a New Conception 



of the Glomerular Activity, 606 

 Broglie (M. de), Mobility of the Ions produced in Air by 



Hydration of Sulphate of Quinine, 201 ; Particular Case 



of Distribution of lonisation in a Gas, 439 

 Bromwich (Dr. T. J. I'A.), the Conditions that a Homo- 

 geneous Strain may be Reducible to a Plane Strain and 



an Extension at Right Angles to the Plane, 541 

 Broom (Dr. R.), the Structure of the Skull of Cynodont 



Reptiles, 505 

 Brown (Dr. George), Melanesians and Polynesians, 146 

 Brown (J. M.), Observations on some New British Rhizo- 



pods, 471 

 Brown (Dr. W.), Emotion and Morals, 125 ; Animal 



Psychology, 342 

 Brownian Movement and Molecular Reality, Prof. M. Jean 



Perrin, F. Soddy, F.R.S., 105 

 Bruce (Dr. Alexander), Obituary Notice of, 524 

 Bruce (Col. Sir David), Experiments to ascertain if certain 



Tabanidae act as the Carriers of Trypanosoma pecorum, 



65 ; Further Researches on Development of Trypanosoma 



gambiense in Glossina palpalis, 134 ; the Morphology of 



Trypanosoma evansi (Steel), 539 

 Bruch (Prof. C), los Aborigenes de la Republica Argentina, 



481 

 Brush (C. E.), a Kinetic Theory of Gravitation, 130 

 Bryan (Prof. G. H., F.R.S.), Academic and Industrial 



Efficiency, M. L. Cooke, Pres. R. C. Maclaurin, 147 

 Bryce (Dr. James, British Ambassador to the United 



States), Specialisation in University Education, 401 

 Buchanan (G.), Note on Developmental Forms of T. brucei 



(pecatidi) in the Internal Organs, Axillary Glands, and 



Bone-marrow of the Gerbil, 607 

 Buchanan (H. B. M.), I0 Work a Grass Holding at a 



Living Profit, and the Cheap Cottage Problem, 209 

 Budd (L. C), Previous Magnetic History as affected by 



Temperature), 371 

 Buekers (Dr. P. G.), die Abstammungslehre, 482 

 Buffalo, the Extinct, of Algeria as Drawn bv Prehistoric 



Man, Sir H. H. Johnston, G.C.M.G., K.C.B., 42 

 Bulstrode (Dr. H. Timbrell), Report on Shellfish other than 



Oysters in Relation to Disease, 571 

 Bunsen Centenary, F. Jones, Dr. J. Grossmann, 79 

 Burali-Forti (Prof. C), Elements de Calcul vectoriel, 75 

 Burch (G. J.), Method of Measuring Colour Sensations by 



Intermittent Light and Description of Apparatus, 199 

 Burnside (Prof. W.). the Determination of all Groups of 



Rational Linear Substitutions of Finite Order which 



Contain the Symmetric Group in the Variables, 541 

 Burton (Dr. C. V.), a Kinetic Theory of Gravitation, 246 

 Burton (William), Refractory Materials and Products, 344 

 Burtt-Davy (Joseph), Inheritance of Row Numbers in 



Maize Ears, 347 

 Busk (H. G.), What will the Weather be? 77 

 Butler (C. P.), the Total Solar Eclipse, April 28, 191 1, 185, 



313; Pressure in Stellar Atmospheres, 362 

 Butterflies, African Mimetic, H. Eltringham, 72 

 Bygravc (Mr.), Plankton Investigations in the Channel, 418 

 Byles (Denison B.), Modern Methods of Water Purification, 



■j. Don, J. Chisholm, 543 



Cabrera (A.), Subspecies of the Spanish Ibex, 608 

 Cailletet (L.), Origin of Carbon assimilated by Plants, 438 

 Cairnes (D.), Coal District of Lewes and Nordenskiold 



Rivers, 361 

 Calculus made Easy, F.R.S., 41 „, t^ r .,0, 



Calendar Reform, 281 ; Alex. Philip, 348 ; W. T Lynn, 381 

 Callendar (ProT. H. L.), the Caloric Theory of Heat, and 



Carnot's Principle, Presidential Address to Physical 



Society, 97 

 Calvert (A. F.), Nigeria and its Tin Fields, 277 

 Cambridge Philosophical Society, 23, loi- .167. .';4i 

 Canada- Heaton's Annual, the Commercial Handbook ol 



Canada and Boards of Trade Register, 42; Canadian 



Mineral Statistics, 58; the Dominion Observatory, 160; 



