INDEX OF VOLUMES I TO XX. 47 



VOL. PAGE 



Ilerschel, Caroline Lucretia, Sketch of, by E. A. Youmans, with Por- 

 trait viii 736, ix 58 



Hewitt, A. S. Iron and Civilization i 339 



Ilibbard, Shirley. Balance of Life in the Aquarium i 434 



Hicks, J. H. Sparrow, Observation of the English (Cor.) xvii 552 



Higgins, P. J. Ventilation, School-room xix 531 



Higgs, Paget. Electricity and Agriculture xvii 664 



Hildebrand, F. Plants, Longevity of , xx 657 



Hilgard, J. E. Sketch of, with Portrait vii 617 



Hill, F. C. Spectroscope, Hints on the v 311 



Water-Supply of Islands vi 440 



ninrichs, G. Chemistry, Geometrical (Cor.) ix 613 



Meteor, The Great Iowa vii 588 



ninton, James. Ear, Hygiene of the iii 139 



Hippopotamus and her Baby. Frank Buckland iii 85 



History and the Centennial (Ed. Tab.) viii 629 



Geology and. Grant Allen xvii 495 



Hitchcock, C. II. Correction of Article (Cor.) xx 403 



Footprints in the Rocks iii 428 



Ice Period, North America in the xx 229 



Life, Earlier Forms of x 257 



The World before the Introduction of Life iv 513 



J. R. W. Harvard, Recent Original Work at xvii 482 



R. Measure of Length xix 652 



Hittle, J. S. Steam, Apotheosis of ix 430 



Holden, E. S. Equation, The Personal vi 385 



Mathematics, Early Hindoo iii 334 



Nebula in Sagittarius viii 269 



Nebula of Orion, Telescopic Research on the v 257 



Time, Distribution of Standard, in the United States xi 174 



Holland, Major. Myriapods ix 570 



Homesteads and Households. W. F. Channing ix 733 



Honeycomb, A Living xvi 824 



-Dew, Origin of (Cor.) xi 237 



Making in the United States (Misc.) xvi 142 



Properties and Production of (Misc.) xii 765 



Hooker, J. D., and the Kew Gardens (Misc.) i 762 



Sketch of, with Portrait iv 237 



Horned Frog, The. F. Buckland ii 676 



Horse, Evolution of the (Misc.) x 118 



in America, The (Cor.) xii 743 



Paces of the vi 129 



Professor Huxley on the (Ed. Tab.) x 369 



with a Stone in his Stomach (Misc.) xv 428 



Horses and their Feet. Sir George W. Cox xviii 468 



Fossil (Misc.) vi 125 



Intestinal Calculi in (Misc.) x 760 



Managing, by Electricity (Misc.) xvii 139 



Many-toed xvi 258 



Horses' Ribs, A Curious Question of. Max Muller vii 214 



Hospitals, Relations of, to Pauperism. W. Gill Wylie ix 738 



