INDEX TO VOLUME XXIV. 
Articles marhcd ivith {*) arc illustrated. 
PAGE. 
Accident, A Remarkable 150 
Accident, An Instructive 185 
Acids, 'I'ransportation of T 
Aerial Navigation 52 
Agassi/. Association 7, ',>, 22, 38, 54, 71, 86, 101, 118. 
134, 151, lti7, 182, 185 
Agricultural Items 68 
Air. Burning in Furnaces 41 
Air, Compressed as a Motive Power 22 
Alaskan l.urial 56 
\icoliols. The 138 
Alloy, A New 7 
Alum in liread 8 
Aluminium 52 
Aluminium Alloys, Cheap Production of 153 
*Amar>'llis, Curious Movement of 161 
American Association, Indianapolis Meeting of 153, 154 
American Psychical Society 41 
Amoeba , The 3 
Aiiclior Ice 163 
Ancients. Arithmetical Calculation Among 114 
Ancients, Scientific Knowledge of ■ - 6, 21, 37 
\ninial Intelligence 172 
Anti-Cigarette Legislation 153 
Ants. To Drive Away 68 
Appendicitis 101 
Aryan Race, Origin of 169 
Astronomical Phenomena (monthly). .12, 28, 45, 60, 75, 91, 108, 
: 124, 140, 157, 173, 189 
Atlantic Racing, cost of 36 
Aurora. Height of 9 
*Autographisni 125, 144, 148, 1^5 
Autumn, Prenionititms of 123 
Bacteria, Microbes, etc. 
Baking Powder, Poisonous 
Base Hail, Electrical 
Battery, Au Kconomical 
Beer, Ancient 
Biology, Brief Studies in 3, *42, 74, 98, 138, 171, 
liirds, Speed of Flight 
Blast, A Big 
Blood .Stains, Detection of 
Boiler Explosions. Causes of 
Boilers, To Fill 
Book. A Valuable 
Boracic Acid.. . ■> 
Brass, To Polish 
Bread, Stale, New Use for 
Brick P^stimates 
*Bridge, The English Channel 
British Association Meeting at Leeds 
British Association, Newcastle Meeting of 
lironze. Malleable 
Bronze, How l^ong Manufactured 
Burns, Salve for 
Cadmium, Atomic Weight of 
Camphor, Movements of, Upon Water 
' "arbons 
C 
Carbon Compounds, Two 
Carpentry, Aboriginal 
'Cash Box, The Magic 
Catarrh, Nasal 
Celerj', To Preserve 
Centenarian, A Noted 
Characters, Acquired, Inheritance of .... 
*C,'hem'cal Laboratory, An Ancient 
t bemical Nomenclature 
Chemical Symbols, Ancient 
Ciiemistry, A Practical Use for 
Chemistry, Relation of, to Medicine 
*Chigger 
Children's Nurses, School for 
Cigarettes 
Coal Cutter, Electric 
Coca in Bolivia 
Cocaine Pencils for the Skin 
Coco, Cacao, and Coca 
Coffee Beans, Artificial 
Cold Bed. The Deadly 
Color Blindness, An Experiment in , .. . 
Conductivity of Metals, Alterations in. . 
Consumption, Alleged Cure for 
Consumption, Open Air Exercise in.. . 
Crime, Is it a Disease ? 
Criminals. Abuse of Pardoning Power. 
Crocuses 
Crystals, Fluid 
Culinary Recipes 
Curic>us Facts 
*CycIone, A Medieval 
Cyclone in the Azores, Results of 
Cyclone in New England 
Cypripedium Calceolus, Fertilization of. 
47 
137 
116 
36 
118 
187 
8 
181 
158 
16!) 
181 
73 
173 
85 
32 
166 
5 
186 
10 
7 
73 
64 
185 
164 
100 
133 
134 
49 
77 
68 
121 
4 
116 
104 
145 
116 
. 61 
, 148 
16 
32 
5 
134 
96 
7(i 
41 
48 
15 
KH 
137 
95 
13 
57 
116 
100 
120 
18(i 
27 
137 
131 
Dangerous Fun 36 
" Darwinism," Review of Wallace upon 82, 106 
Deer Forest, Pleasures of a t>8 
Dentists, Number in Germany 96 
Development, Photographic, Reversal by Eikonogen 185 
Dextrose. Synthesis of 153 
Dodder, The 67 
Doors, Electrical 70 
Ears, Operation for Prominent % 
Earth, Ceological Formation of 131 
Earth, Theories of Formation of 83 
Earthquake in California 105 
Earthworm, The 74 
Eating too Aluch 13 
"Eclipse, Total Solar 73, 109 
Education, Modern. Deficiencies of 169 
Eggs, Bacteria in 89 
Egyptian Language and Chronology 35 
Eiffel Tower, I'tiTization of 148 
TJght Hour Movement, Physiological View of 141 
Eikonogen, A New Developer 6 
Electrical and Magnetic Disturbances Produced by jRailway 
Trains 121 
Electrical Humbug, A Recent 121 
Electric Light for Binnacle 116 
Electricity, Case-hardening by 181 
Electricity in the Dairy 52 
Electricity, Limitations of 122 
Element, A New 57 
Elements, Apparent Transmutation of 9 
Elements, New Theory of 41 
*Elevator, A Novel 5 
Engineering Achievements, Modern 89 
•Erosion, .\tmnspheric, Cm-ious Effects of 
Evolution Club of Chicago 
Execution by Electricity 137, 
Eyes, Care of the 
Faith Cure Society, Disbandment of 
Fauna and Flora of Primitive and Recent Periods 
Fees, Medical, in New York 
Fight Between Wasp and Bee 55, 
Fingers, Peculiar Adhesive Power of 
Fire 
Fire, Curious Methods of Making 
Fire-Flies, Light of ; ; 
Flames, ^Iusical 
Flash Powders, Photographic 
Florida, Rainy Season of 
Flowers, Mailing : 
Fluoresence 
Fluorine, Combinations, with Platinum and Gold. 
Flies of Prey 
Flora of Eastern and Western Hemispheres 
*Forces, Minute, Measurement of 
Foster's Flat 
Fretwork, To Varnish 
Fruit Blossoms 
Gases, Liquid 
Gas RIeter, An Honest 
Gas, Natural, Alleged .Solidification of 
Gelatine and Its Uses 
Geological Observations in 1890 
•Giant, A Prehistoric 
Glaciers, Their Formation and Movement. 
Glanders, A Cure of 
Glass Tubes, To Cut 
Gleanings ' 
( Uycerine 
Glycerine, Action on Vulcanized Rubber . 
(Jold . 
Gordius, The 
( drafting. Herbaceous 
Grapes, Novel Training of.. 
Graphites, Chemistry of the- 
•Grasses, About 
Grass of Parnassus 
Grasshojiper, The 
Gravitation, New Theory of. 
Gun, Gatling's Cast Steel . - - 
.135, 
90 
92 
174 
93 
73 
3 
48 
67 
25 
33 
99 
137 
53 
73 
19 
130 
9 
25 
115 
120 
170 
84 
85 
36 
130 
1(>6 
25 
69 
167 
113 
164 
13 
132 
8 
180 
53 
153 
169 
29 
)>8 
57 
152 
116 
98 
25 
150 
Hailstones, Extraordinary .'»4, 138 
Horse-hair Snakes 169 
How Old is the World? i\^ 
H unyadi Janos 48 
Hybrids, Vegetable ■ -Sfi 
•Hydra, The .' 42 
Hydrophobia, Cure of 9 
Hypnotism HJO 
Hypnotism, Operation under . : 108 
Ice Hou.se, A Natural 1(>3 
Incombustible Textile 70 
Indian Village, An .Ancient 43 
PAGE. 
Indians of New Mexico, Dwellings of 67 
•Induction, Electric, Experiments in 129 
Industrial Memoranda 6,22,70, 118, 134,160,166, 181 
Industry, A Novel 134 
Infant Feeding, Dilution of Cow's Milk in 15 
Iiitluenza, The 25 
Ink, Invisible 4 
Insect Intelligence, Remarkable 55, 57 
Insulating Compound, New 70 
Iodine, " Colorless '" 105 
Iron, Ores of 149 
•Joule, James Prescott 1 
•Jugs ; How They Are Made 5;i 
Khojak Pass. The 1^- 
Knock-out, Physiology of 112 
Kochs' Consimiption Cure IWI 
*I.Aborator>' Devices, Some New ltl"> 
Laboratoiy Notes : 5.'l 
La Cirippe ; Report of Case .' 12^ 
Lake Cliamplain 164 
Lake Dwellers of Switzerland, The 17, 34, 51 
Lake (Juinsigamond, On tl>e Shores of 150 
Landrey, Dr. S. F 41 
•Leaf Mosaics 49 
Left Side of Body, Inferiority of 48 
•Length, The .Standard of IT 
Leyden Jar, A Simple 116 
Lick Observatory, A Visit to the 105 
Lick Telescope, Photographic Qualities of 121 
Light, Mechanical Equivalent of 41 
Lightning, Kinds of 117 
Lightning, Peculiar Freak of 10.'> 
Lightning, The Way of the 16;i 
Lint, Sterilized 4?< 
Literary Notes 12, 29, 45, W, 76. !)2, 109, 125, 141, 157, 173, l!)i» 
Low Water in Boilers 169 
Magnetic Experiment, Explanation of los 
, " Magnetic Man," A !!•" 
Magnet for Extracting Metallic Particles from the Body lis 
•Magic Square, An Ancient 74 
Malaria, Protection from 121 
Manure, Loss of, by Exposure. ^f- 
•Marine Animals, Rock-Boring 12:i 
Measles. Child Born with the ti4 
Medical Congress, Tenth International 159 
Medical Memoranda 16, 64 
Medical Miscellany 32,48,96, 112, 128, 144 
Medicine, Rational Use of 77 
Medicine, Relation of Chemistry to *'I 
Medicine, State Regulation of 126,174 
Mental Trait, A Curious 50 
Mercury Mine, A New 52 
Mercury, Rotation Time of ; - 67 
Metals, Uncommon , but Useful 132 
Meteorite Containing Organic Matter 41 
Meteorological Report (monthly) 11, 27. 44. 59, 75, 91, 107. 
124, 139, 156, 172, 189 
Metric System, Modern Adoption of 89 
Mexican < )nyx 164 
Microbe Killer 32 
Microptione, A New Use for ■ 116 
•Microscope for Pharmacists, A 141 
Microscopic Exhibits, Curious VJ\) 
Microscopical Meeting at Detroit 14*i 
Milk, Consumption of, in Paris 6h 
Mineralogy. Course in 22 
Mining, .Safety of 7 
Mizar, The Star •. 132 
Mole Crickets : 24 
Montpelier l^niversity, Sixth Centennial of 114 
Moon's Surface, Temperature of 9 
M usic as a M edicine i**i 
Musk, Artificial 4 
Nail Holes, To Fill 85 
Natural (ias, Reduced Supply of 185 
Natural History Observations in 1890 '. 168 
•Natural History Observations in 1890 (Walter's). 183 
New Mexico, Botanical Notes from 147 
New Mexico, Mineral Wealth of 58 
New Mexico. Water Ways of 122 
Nitrous Acid, .Solidification of 38 
Norumbega, An Ai»cient City 9 
Nutmeg in Sledicine, The ' 16 
Observations, Original 8. 24 
•Observatory, Eiffel Meteorological 81 
Oil Wells, Burme.se 101 
Old Age Ill 
( )leomargarine Tjegislation, Proposed 41 
Optical Phenomena, Wonderful 9!t 
Orchids, Rhode Island 148 
