Meyeria ornata, [519].

Micraster cor-anguinum, [328].

Microdon, [610].

Microphytes, fossil, [88], [337].

Microscopical examination, [65], [371], [639].

Microzoa, [338].

Middleton Moor, Derbyshire, [285], [894].

Millepora rhombifera, [264], [268].

Miller, Mr., works and researches of, [288], [331], [456], [864].

------ Mr. Hugh, works and researches of, [32], [612], [614], [618], [619].