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Title
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030 - Upon a Modification of Wheatstone's Microphone and Its Applicability to Radiophonic Researches

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029 - An Integrating Machine

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028 - Gelatine Transparencies for the Lantern

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027 - The Photographic Image What It Is

5

026 - Photo-Electricity of Fluor-Spar Crystals The Aurora Borealis and Telegraph Cables

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025 - On the Space Protected by a Lightning-Conductor

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024 - Economy of the Electric Light

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023 - Researches on the Radiant Matter of Crookes and the Mechanical Theory of Electricity

9

022 - Rate of Production of Heat Calculated in the Shape of Horse-Power

10

021 - The Future Development of Electrical Appliances

11

020 - Delicate Scientific Instruments

12

019 - The American Society of Civil Engineers Address of the President

13

018 - Thomas's Improved Steam Wheel

14

017 - Dry Air Refrigerating Machine

15

016 - Analyses of Rice Soils from Burmah

16

015 - On the Change of Volume Which Accompanies the Galvanic Deposition of a Metal

17

014 - Chian Turpentine

18

013 - Notes on Cananga Oil or Ilang-Ilang Oil

19

012 - Petroleum Oils Composition of the Petroleum of the Caucasus

20

011 - The Chemical Composition of Rice Maize and Barley

21

010 - On the Composition of Elephants' Milk

22

009 - Organic Matter in Sea-Water Bacteria Life

23

008 - The Preparation of Perfume Pomades

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007 - Manufacturers' Soaps and Their Production

25

006 - Seyfferth's Pyrometer

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005 - Carbon--Symbol C--Combining Weight 12

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004 - Explosion as an Unknown Fire Hazard

28

003 - On the Calorific Power of Fuel and on Thompson's Calorimeter

29

002 - Detection of Alcohol in Transparent Soaps

30

001 - Alcohol in Nature--Its Presence in the Earth Water and Atmosphere