Transcriber's Notes.

Spelling irregularities where there was no obviously preferred version were left as is. Variants include: "embedded" and "imbedded;" "a hypothesis" and "an hypothesis;" "inexhausted" and "unexhausted;" "volcanos" and "volcanoes."

Changed "intelligencies" to "intelligences" on page xvi: "may be rational intelligences."

Changed "familar" to "familiar" on page 43: "had been familiar."

Changed "Chalmer's" to "Chalmers'" on page 67: "Chalmers' reasonings."

Inserted missing period after "live in the sea" on page 78.

Changed "disapear" to "disappear" on page 82: "at last they disappear."

Changed "natturally" to "naturally" on page 84: "we may naturally ask."

Changed "planets" to "plants" on page 91: "plants and animals."

Changed "intelligenee" to "intelligence" on page 125: "intelligence, morality, religion."

Changed "crystaline" to "crystalline" on page 126: "of crystalline powers."

Changed "dissimiliar" to "dissimilar" on page 128: "perpetually dissimilar."

Changed "words" to "worlds" on page 135: "plurality of worlds."

Changed "insignificent" to "insignificant" on page 151: "insignificant and insensible."

Changed "tales" to "tails" on page 170: "tails of comets."

Changed "Chambers'" to "Chalmers'" in the footnote on page 175: "Chalmers' Astron. Disc."

In the footnote on page 177, "the times of the warning" might be a typographic error for "the times of the waning," but was not changed.

Changed "disaprove" to "disprove" on page 185: "prove or disprove."

Changed "one-thirteenth" to "one-thirtieth" on page 194: "be one-thirtieth as large."

Changed "skeletous" to "skeletons" on page 208: "Can they have skeletons."

In the footnote from page 217, "Schroeter" appears with the oe-ligature; elsewhere it does not. The ligature was replaced by the two separate characters in the footnote.

Changed "how-however" to "however" in the footnote from page 233: "This, however."

Changed "hisorians" to "historians" on page 253: "natural-historians."

Changed "Meaning" to "meaning" at the beginning of page 261, since it's not a new sentence.

Changed "crystalizes" to "crystallizes" and "crystaline" to "crystalline" on page 265: "Ice crystallizes;" "crystalline aggregation."

Changed "Artic" to "Arctic" in the footnote from page 265: "Account of the Arctic Regions."

Changed "kingdon" to "kingdom" on page 267: "the animal kingdom."

Changed "splendour" to "splendor" on page 273: "the material splendor."

Changed "hightest" to "highest" on page 295: "the highest degree."

Changed "deely" to "deeply" on page 305: "who most deeply feel."