CONTENTS 



Barometric Tables 



133. Reduction of barometric height to standard temperature 181 



134. " barometer to standard gravity, free-air altitude term . 182 



135. metric measures . . . 183 



136. " " " " " " English measures . . 185 



137. Correction of the barometer for capillarity 187 



138. Volume of mercury meniscus in mm 3 187 



139. Pressures and the boiling point of water : 



(c) Metric units 188 



(b) English units 188 



140. Determination of heights by the barometer 189 



Acoustics 



141. Velocity of sound in solids 190 



142. " " water 190 



143. " " liquids and gases 191 



144. Musical scales: Data for middle octave 192 



145. Notes needed to transpose to other scales .... 192 



146. Fundamental tone, harmonics, nearest tone of equal-tempered scale. 193 



147. The bel and the decibel 193 



148. Loudness levels of various noises 193 



149. Peak power in watts of musical instruments (fortissimo) .... 193 



150. Relative strength of partials, various musical instruments .... 194 



151. Miscellaneous sound data 194 



152. Audibility as dependent on sound pressure and frequency .... 194 



153. Speech 195 



154. Characteristic resonance values for spoken vowels 195 



155. Speech power (Fletcher) 195 



156. Phonetic powers, average conversation 195 



Aerodynamics 



157. Velocity pressure at different air speeds 196 



158. Corrections to Robinson cup anemometers 197 



159. Resistance coefficient for thin flat plates normal to wind 198 



160. Forces on thin flat plates at angles to wind 199 



161. Forces on nonrotating circular cylinders 200 



162. " spheres 201 



163. " miscellaneous bodies 201 



164. " " cylinders 202 



165. Skin friction 203 



166. Friction 204 



167. Lubricants 204 



168. Lubricants for cutting tools 204 



