IV. 



KNOWLEDGE 



Daddy-Longlegs — 



By E. A. Butler 245 



Defining Power of Insects' Eyes — 



By A. CowpER Ranyard ... ... .. 15G 



Degeneration of Human Stature — 



By Miss C. S. Bremnek 273 



Denham, J. T.— 



The Queen Bee 136 



Denning, W. F.— 



Letter on Eeturus of Periodical Comets ... 88 

 Letter on Periodical Comets... ... ... 135 



Deslandres, H. — 



On the Electric Origin of the Solar Chromo- 

 sphere . . ... ... ... ... 277 



Distance and Mass of the Binary Stars — 



By J. E. Gore... 



Distribution of Stars in the Milky Way — 



By W. H. Wesley 179 



Electric Origin of the Solar Chromosphere— 



By H. Deslandres .. ... .. ... 277 



Elger, T. Gwyn— 



The Central Equatorial Eegion of the Moon 276 



Encke and Seeberg— 



Letter on : by ^Y. T. LvxN 40 



Evershed, J. — 



Solar Faculffi ... ... 17 



Experiments on Radiation of Heated Gases, 

 etc 217 



Experiments on Radiation of Heated Gases, etc. — 



By J. Evekshed . .. ... ... 217 



Extinct Argentine Mammals — 



By R. Ltdekker ... ... ... ... 26 



Face of the Sky — 



Every month ; by Herbert Sadler. 



Fatigue of Metals and Muscular Fatigue — 



By D. S. Smart 180 



Formation of Diamonds — 



By YAroHAx Cornish ... ... ... ... 117 



Fossil Wood— 



By Rev. A. S. Wilson 48 



Garbett, E. L.— 



Letter on Comet due in 1899 ... ... 87 



Genesis of Flowers — 



By Rev. Alex. S. Wilson ... .. ... 125 



Giant Refracting Telescopes of America— 



By A. CowPER Ranyard ... ... ... 11 



Gilbert, E. G.— 



Letter on Physiological Effects of City and 

 Seaside Air ... ... ... ... ... 118 



Globular Star Clusters— 



By .J. E. Gore ... 



Glow-Worm — 



By E. A. Butler 



232, 255 



268 



Gore, J. E.— 



Globular Star Clusters 232,255 



The Distance and Mass of the lUnarv Stars... 271 



271 Great Sanitary Lesson of the Crimean War- 

 By G. B. Loxgst.u--f ... 



Ground Sloths — 



By R. Lydekker 



Grubb, Sir Howard — 



]\Ioimtiug of Large Reflecting Telescopes ... 



Hale, Prof. Geo. E.— 



The Solar Faculffi 



Mounting of Large Telescopes 



Hazing Effects of Atmospheric Dust- 

 By Dr. J. G. McPherson 



Holmes, Edwin — 



Letter on Large Telescopes ... 



Home of the Rodents — 



ISy R. Lydekker 



Industry of Insects — 



By Rev. .\lex. S. Wilson ... 



Inhabitants of some Common Galls — 



liv Rev. Alex. S. Wilson 



80 



73 



98 



18 

 145 



283 



39 



241 

 280 



235 



Insect Secretions — 



By E. A. Butler 



.103,121,146,176,196,228 



Irregularities in the Tails of Comets- 



By A. COWPER R.ANYARD 



Letter on ; by Harry Proctor 



Is Beta Lyrae a Double Star? — 



By Miss A. M. Clerke 



35 

 63 



128 



