TRANSCRIBER'S NOTE
Fig. 70 and Fig. 276, displayed sideways in the original, have been rotated 90 degrees.
A few long paragraphs have been split in two to better accommodate multiple illustrations in that paragraph.
Some illustrations have been placed on the right of the text although they were on the left in the original, to display better in some handhelds. A few have been moved to the following paragraph.
Obvious typographical errors and punctuation errors have been corrected after careful comparison with other occurrences within the text and consultation of external sources.
Except for those changes noted below, all misspellings in the text, and inconsistent or archaic usage, have been retained. For example: farther, further; India rubber, India-rubber; every where; catechetical; incloses; tricksy; pervious; motal; enrobes; subtile.
Pg [79], 'gravity made made him' replaced by 'gravity made him'.
Pg [157], 'if non elastic' replaced by 'if non-elastic'.
Pg [264], 'the divergency when' replaced by 'the divergence when'.
Pg [297], '283. Electricity' replaced by '383. Electricity'.
Pg [321], the Questions begin with number '13' and has not been changed.
Pg [331], the number '174' is used twice and has not been changed.
Pg [335], 'with phosporus' replaced by 'with phosphorus'.