KNOWLEDGE 



Vll. 



Ranyard, A. Cowper—coHf /»»«/. 



Note as to the time elapsed since the Separa- 

 tion of the Earth from the Sun 162 



On some Recent Advances in the Study of 

 Solar Prominences and Facnl» 169 



On the Cause of the Changes in the Bright- 

 ness of the Nova Aurigfe 170 



.Note as to the Discoveries of the Rev. .lohn 



Michell 191 



What is a Nebula ? 131, 191 



Note as to the Temperature of Mars . . 194 

 On the Forms of Comets' Tails 229 



Note on Homer Lane's Theory as to the 

 Increase of Heat of a Gaseous Sphere con- 

 tracting under Gravity ... ... ... 237 



Repulsion — 



Probable Explanation of the Repulsion of 

 Matter in Comets' Tails 



Rodw ell, John M.— 



Pediculi of the Eagle and Pigeon 



. 231 



14 



Ruminants — 



Article by E. Lydekkee on Ruminants and 

 their Distribution ... ... ... ... 152 



Runaway Stars — 



Note by A. C. R.^nyaed 



49 



Russell, H. C— 



Letter as to Photographs of Swift's Comet ... 112 



Sadler, Herbert — 



The Face of the Sky for each Month. 



Sawer, J. Ch. — , 



Camphire and Camphor ... ... ... 55 



See, T. J. J.— 



On the Origin of Binary Stars . . ... 81 



Letter as to Tide Generating Force ... ... 114 



Note on the Cause of the Eccentricity of the 

 Orbits of Double Stars 132 



Seeley, Prof. H. G.— 



His Discovery in South Afi-ica of Fossil Bones 

 of Gigantic Salamander ... ... ... 231 



Solar Type Stars- 

 Have on the average Larger Proper Motions 



than Sirian Stars. Note by A. C. Ranyard 50 

 Letter on the Subject ; by W. H. S. Monck ... 72 



Stas, Jean Servais — 



Chemical Researches of; Paper by Vaughan 

 Cornish ... ... ... ... ... 74 



Stellar Spectra- 

 Letter from 'W. H. S. Monck 

 Letter from .T. E. Gore 



51 

 70 



Stewart, J. J. — 



Some Practical Applications of Electricity ... 124 



St. Gervais— 



The Disaster at ; by Lord .Justice Fry . . 201 



Sundial — 



A Meantime Sundial, invented by Major- 

 General -T. R. Oliver 133 



Sunspots — 



The Great Sunspot and its Influence 68, 89 



The connection between Sunspots and Mag- 

 netic Storms... ... ... ... ... 70 



On the Distribution of Sunspots in Solar 

 Latitude ; by E. 'W. Maunder 128 



Sutton, John Richard — 



The Rev. -Tohn Michell, Astronomer and 



Geologist 188,206 



On the distribution of Stars in the Milky Way 224 



Swift's Comet — 



Letter from H. C. Russell as to photographs 

 of 112 



Taylor, Canon Isaac — 



A Gossip on Ghost-names ... ... ... 3 



Temperature — 



Irregular increase of, in descending through 

 the Stratified Rocks... ... ... ... 72 



Transparency — 



On the Evidence as to the Transparency of 

 Nebuhe 191 



Tutt, J. W.— 



Notice of his book, " Melanism and Melann- 

 chroism ill British Lepidoptera " ... ... 12 



Velocity — 



With which a body must be projected from 



Smith. J. Pentland— 



The Feeding of a Plant 

 On Grasses 



134 

 185 



tlie Moon to reach the Earth 



Wallace, Alfred Russel — 



Notice of his liook, " Island Life " .. 



Wilson, The Rev. Alex. S.— 



Article on the Flower of Mahomet . . 



12 



151 



111 



Solar Cluster — 



Discussion as to the Probable Existence of 49, 73 



Yerkes, Chas. T.— 



Gift of great Tele.scope to the University of 

 Chicago ... ... ... ... ... 212 



