GLOSSARY. 



Migratory. Removing or accustomed to 

 remove from one climate to another; 

 as, migratory birds. 



Milleftore. A genus of Lithophytes, of 

 various forms, which have the surface 

 perforated with little holes or pores, 

 or even without any apparent perfora- 

 tion. 



Milleporite. Fossil millepores. 



Mind. An essential element in the com- 

 position of every animal. Though it 

 can neither prevent the existence or 

 change the characters of matter, motion, 

 or sensation, (the other essential ele- 

 ments,) it takes cognizance of causes, 

 and provides for consequent effects, 

 before the other elements can obey its 

 behests. 



" Of the connection of mind with 

 the organs which it commands," says 

 Mr. Newman, " we know nothing : 

 mind itself is only known by its ef- 

 fects; its commands are carried by the 

 nerves, a fact ascertained by separat- 

 ing a nerve, after which separation, the 

 mind no longer controls the parts to 

 which that nerve extended its branch- 

 es." (See Nerves.) 



Minialous. Of the color of red lead. 



Miocene. The tertiary period, in which a 

 small portion of fossil shells are of the 

 recent species. 



Molares Denies. The molar teeth, or 

 grinders. 



Molares Glandulce. The molar glands : 

 two salivary glands situated on each 

 side of the' mouth, the excretory ducts 

 of which open near the last molar 

 tooth. 



Molecule. The smallest particle into 

 which a mass can be conceived or di 

 vided. 



Molecules. Microscopic particles. 



Molehill. A little hillock or elevation of 

 earth thrown up by moles working 

 underground. 



Molluscous. Pertaining to, or partaking 

 of, the properties of the class of ani- 

 mals termed Mollusm, which form the 

 primary division of the animal king- 

 dom. 



Momentum. The quantity of motion in 

 a moving body. 



Monad. The genus of the most minute 



and simple microscopic animalcules, 

 which are shaped like spherical 

 cells. 



Mongrel. An animal of a mixed breed. 



Moniliform (antenna). Having each joint 

 oval or globose, resembling a neck- 

 lace. 



Monocular. Having but one eye. 



Monocule. An insect with onlv one eye. 



Monodactulous. Having one ringer or 

 toe only. 



Monogamous. Living with one mate or 

 partner ; opposed to polygamous. 



Monograph. An account or description 

 of a single thing or class of things. 



Monomerous. A term denoting that the 

 trunk of an insect has no suture or 

 segment ; or that the troclianter consists 

 of only one joint. 



Monomyary. A bivalve whose shell is 

 closed by one adductor muscle. 



Monothalamous. One-chambered ; an epi- 

 thet applied to shells when the cham- 

 ber is not divided by partitions. 



Monster. An animal produced with a 

 shape or parts that are not natural. 



Morphological. Relating to the modifica- 

 tions of form which the same organ 

 undergoes in different animals. 



Mortal. Subject to death ; destructive to 

 life. 



Moschate. Having a scent resembling 

 musk. 



Moss-clad. Covered or overgrown with 

 moss. 



Motatorious. Pertaining to the mota- 

 torii, those legs which, when an insect 

 is at rest, are in a perpetual vibratory 

 motion. 



Motory (nerves). The nerves which con- 

 trol motion. 



Mottled. Clouded or spotted with vari 

 ous colors. 



Mouse-colored. Black, with a small pro- 

 portion of yellow: the color of the 

 common mouse. 



Mucilage. The liquor which moistens 

 and lubricates the ligaments and car- 

 tilages of the articulations or joints in 

 animal bodies. 



Mucilaqinous. Moist, soft, and lubricous ; 

 partaking of the nature of mucilage. 



Macro. A short, stout, sharp-pointed 

 process. 



