A D I 



[5 1 



A E R 



little more than a month ; but adipocire 

 has also been produced, though not so 

 rapidly, by the heaping together large 

 masses of putrefying animal matter, as 

 was discovered on the removal of a very 

 great number of bodies from the burial 

 ground of the Church des Innocens at 

 Paris, 1787. Adipocire possesses many 

 of the properties of fat combined with a 

 portion of ammonia. It was first disco- 

 vered by Fourcroy. 



ADIPOCE'RE MINERAL. A fatty matter 

 found in the argillaceous iron ore of Mer- 

 thyr: it is fusible at about 160, and is 

 indorous when cold, but when heated it 

 emits a slightly bituminous odour. 



i'mPous: }(^iposu S , Lat.) Fat ; fatty. 



A'DIT. (aditus, Lat.) The shaft or en- 

 trance into a mine, usually made in the 

 side of a hill, for the conveyance of ore, 

 and the carrying off the water. 



ADJUSTMENT. A rendering fit or com- 

 formable. 



ADMI'XTION. (admisceo, Lat.) The union 

 of various bodies, or substances, by min- 

 gling them together. In admixtion each 

 body retains its own character, and does 

 not undergo any chemical change, as in 

 composition. 



ADMI'XTURE. The mass of mingled sub- 

 stances. 



ADNA'SCENT. (adnascens, Lat.) Growing 

 to some other thing. 



ADNA'TA. (adnatus, Lat.) 



1. Those parts of animal, or vegetable 

 bodies which are natural, as the nails, 

 hair, &c. 



2. Accidental parts, as fungi, misletoe, 

 &c. 



3. The external coat of the eye. 

 A'DNATE. Growing to ; adhering. In 



botany, it is used when a leaf adheres 

 to the branch or stem by the surface or 

 disk itself ; applied to stipules when they 

 are fixed to the petioles. 



ADPRE'SSED. (appressus, Lat.) Appressed, 

 or pressed close to ; pressed together. 



ADSCITI'TIOUS. (Lat.) That is added to 

 complete something else, though origi- 

 nally extrinsic. 



ADVENTITIOUS, (adventitius, Lat.) Ac- 

 cidental ; extrinsically added ; that which 

 does not properly belong to any body, or 

 substance ; casual. 



ADULA'RIA. Moonstone ; a transparent 

 white-coloured variety of feldspar, with a 

 silvery, or pearly opalescence. 



ADU'NCITY. (aduncitas, Lat.) Crooked- 

 ness ; hookedness ; flexure inwards. 



ADU'ST. (adustus, Lat.) Burnt up ; 

 scorched. 



ADU'STIBLE. That is capable of being 

 burnt. 



A stone found in Sweden, and 



thus named by Mr. Kirwan. Its form is 

 tuberose and knotty. Texture striated; 

 sometimes resembles quartz. Lustre from 

 to 1. Specific gravity 2 '5 15 after it 

 has absorbed water. Colour light grey. 

 Before the blow-pipe it intumesces, and 

 forms a frothy mass. Acids convert it 

 into a jelly. "A specimen, analysed by 

 Bergman, contained 69 silica, 8 lime, 

 20 alumina, 3 water. Thomson. 



AE'LODON. A fossil saurian of the oolite 

 and lias. 



A'ERATE. To combine with carbonic 

 acid. 



A'ERATED. Combined with carbonic acid, 

 or fixed air. 



A ERA'TION. The combining with fixed air, 

 or carbonic acid* 



AE'RIAL ACID. A name given by Berg- 

 man to carbonic acid or fixed air ; aerial 

 acid is of greater specific gravity than 

 atmospheric air, and extinguishes flame. 



AE'RIFORM. Resembling air ; having the 

 nature and properties of air. 



AE'ROLITE. (from arjp and Xi'0o, Gr.) A 

 name given to meteoric stones, which, oc- 

 casionally, fall to the earth. Nothing is 

 positively known as to the origin of 

 aerolites : by some authors they have 

 been supposed to come from the moon, 

 being projected by volcanic force beyond 

 the sphere of the moon's attraction ; by 

 others they have been thought to be 

 children of the air, created by the union 

 of simpler forms of matter. They do not 

 resemble any other substance found on 

 the earth, and it has been indisputably 

 proved that they are not of terrestrial 

 formation. The fall of these bodies has 

 been well ascertained, and has occurred at 

 different times, and in various parts, 

 through many ages. Some of these aero- 

 lites are immensely large, from 300 Ibs. 

 downwards. From an analysis of them, 

 they are all found to agree in their compo- 

 nent parts. They are covered with a thin 

 crust of a deep black colour, their ex- 

 terior is roughened with small projec- 

 tions, and they are destitute of gloss. 

 Internally their texture is granulated, and 

 of a greyish colour. When carefully ex- 

 amined, they appear composed of a num- 

 ber of small spherical bodies and metallic 

 grains imbedded in a softer matter, com- 

 posed, according to the Hon. Mr. How- 

 ard, who diligently and carefully studied 

 them, of silica, magnesia, iron, and 

 nickel. In addition to these substances, 

 Vauquelin found chrome, and Stromeyer 

 discovered cobalt, in aerolites : lime, alu- 

 mine and manganese have also been de- 

 tected in them. Meteoric iron has been 

 imitated by fusing iron with nickel. 

 When it is considered how many of these 

 bodies have been seen, or heard, to fall 



