KNOWLEDGE. 



vu. 



Sacred Water of Mecca— 

 By C. A. Mitchell 



Sadler, Herbert — 



Face of the Sky every month. 



Saturn's Dark Eing— 



By William Noble 



Science Notes — 



Nearly every month. 



Sealing in Open Waters — 



By Prof. JoHx Milne ... 



Sewer Gas and Zymotic Disease — 



By A. CoWPEE E.\NV.\RI> 



Silberrad, Chas. A. — 



Cellulose 



56 



160 



25 



57 



230 



Skene, A. P.— 



Letter on the Aurora and Zodiacal Light ... 116 



Smart, D. S.— 



The Fatigue of Metals and Muscular Fatigue 180 



Smith, J. Pentland— 



Boot Tubercles of Peas, Beans, and Vetches 68, 91 



Solar Faculae— 



By Prof. Geo. E. Hale 18 



Letter on ; by J. Eveeshed ... ... ... 17 



Some Peculiarities of Water — 



By J. J. Ste\v.\rt ... ... ... ... 186 



Star Clusters in the i) Argus Region — 



By A. CowPER Eanyard ... . ... 131 



Stewart, J. J. — 



Weighing the Earth 30 



Luminiferous Ether ... ... .. 111,123 



Liquid Air ... ... ... ... 149 



Some Peculiarities of Water ... .. ... 186 



Stinging Insects — 



ByE. A. Butler 40,53,77 



Stock Dove — 



By H. F. WiTHERBY 60 



Streams of Stars in the Milky Way — 



By A. CowPER Eanyard ... ... ... 101 



Structure of the Milky Way— 



By A. CowpER Eanyard and Prof. Barnard ... 253 



Sympathetic Explosions — 

 By C. A. Mitchell 



231 



Tenuity of the Sun's Surroundings- 



By E. Walter Maunder ... ... ... 49 



Thermal Radiation from Sunspots - 



By W. E. Wilson 82 



Types of Floral Structure- 

 By Eev. Alex. S. Wilson 163,210 



Unusual Appearance— 



By Charles MacIver... ... ... 86 



Yenom of the Cobra — 



By C. A. Mitchell 137 



Venom of the Vipers — 



By C. A. Mitchell .. ... ... 161 



Visibility of the Dark Limb of Venus — 



By WiLLLUi Noble ... . . ... ... 135 



Wanderings of a Sunspot— 



By E. Walter Maunder 198 



Water-Hen — 



By H. F. WiTHERBY 212 



Web of the Garden Spider- 

 By E. A. Bdtler 284 



Weighing the Earth- 

 By J. J. Stew.\rt ... ... ... ... 30 



Wesley, W. H.— 



Distribution of Stars in the Milky Way ... 179 



What is a Comet's Tail ?— 



By A. CowPER Eanyard ... ... ... 113 



What is a Star Cluster? 



By A. CoWPER EANY.iRD ... ... ... 204 



Whitehouse, A. E. — 



Letter on Meteors in the Lunar Atmosphere 115 



Wilson, Rev. Alex. S.— 



Fossil Wood ... 48 



Genesis of Flowers 125 



Types of Floral Structure 163,210 



Inhabitants of some Common Galls ... ... 235 



Industry of Insects in relation to Flowers ... 280 



Wilson, W. E.— 



Thermal Eadiation from Sunspots ... ... 82 



Witherby, H. F.— 



The Stock Dove 60 



The Wood Pigeon 141 



The Water-Hen 212 



Wood Pigeon- 

 By H. F. WiTHEfiBY 141 



