MAMMALIA, the first class of animals, including such as suckle theTr 

 yonng by means of la(5tiferous teats. 



MANDltiLES, the 2 pieces composing the bill of birds : Birds, f,^y a.b, 



MERG1F0R:\1, clustered like a sheaf of corn. 



MOLLUSCA, the second order of worms, comprising those simple 

 nakid pnimals which are furnished with limbs. 



MONA DELPHI A, the sixteenth class of plants, comprising those her- 

 maphrodite vegetables with one set of united stamina : plate 1, f. 16. 



MONANDRLV, the first class of plants, containing those herraaphrodit» 

 ones which have only one stamen : jjlate 1, fig. I. 



MONILiFOllM, beaded like a necklace: plate 3, fig. 9 : g. 



MONCECL'V, the twenty-first class of plants, includina; such as have 

 both siaraen and pistil on the same plant, but in distijic^t fiowers : 

 plat(i 1 . fig. 2 1 . 



, ^.. — j^ .„ irp rigid po 



MUTE, in mineralogy applied to metals which do not ring when struck 

 with other hard substances. 



MURICATE, clothed with sharp rigid points. 



MLSCl, mosses, the second order of the class cryptogamia, contain- 

 ing those leafy vegetables having a capsule furnished with adeci- 

 duous veil and a lid : ^j/w^e 1, fig. 24 ; B. 



NATATORY, legs or appendages formed for swimming. 

 NECESSARL\, an order of vegetables of the class syngenesia, where 



the tiorets of the disk are barren for want of a stigma, but the 



female ilorets of the ray produce perfect seeds. 

 NECTARY, that part oi the flower which usually contains a sweet 



' honey-llkc fluid: plate 6, fig. 23; a. 

 NEUROPTERA, the fourth order of insects, comprehending such as 



have 4 membranous finely reticulate wings, and have no sting : 



Insecis^ fig. 18. 

 NICTTfANT IMEMBRANE, a thin membrane which covers the eyes 



of birds and fishes sheltering them from too much light and external 



injuries, and through which they can see pretty distin6tly. 



OB, in composition is used for obversely or inverted ; as obconic, in- 

 versely conic ; obcordate, inversely heart-shaped, Sfc, 



OBVOLl'TE, applied to the foliation of leaves : when the margins altcF- 

 nat.'iy embrace the straight margin of the opposite leaf: jil. 8, f. 20. 



OCELLATE, applied to eye-like spots which are surrounded with a 

 ring of a difterent colour called the iris, and often inclosing one or 

 more lesser spots called the pupil : Insecls^ fig. 17. 



CCTANDRIA, the eighth class of vegetables, including those herma- 

 phrodite plants which have 8 stamina : plate 1, fig. 8. 



ORBITS, the region round the eyes : Birdsy fig 3; c. 



ORDER, the subdivision of a class, or second branch systematical 

 arrangement. 



OVATE, shaped like the longitudinal sc6tion of an egg. 



