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Pifeafes of manufacturers, 1 87 Eggs of birds, parts of zoolo- 

 Dodecahedral, - 117 gy* - 23, 189 



Dolomite, - 105 Egyptian pebble, 123 



Domeftication of animals, 186 Elater, «._ - 3 



Drawings of plants* directions Electrical rods, - 187 



for, - - 179 Elephants - 1S8* 



Drawing, ftate of, 181 Englifti fal volatile, 101 



Dyeing materials, 18 1, 182 Engravings in ftone, 180 



Ductile metals, - 136 Ephemera, - ji, $ 



Epfom fait, - 42, 5 8 



Eagle wood, - 1 94 Eudiometer, 90 

 Earth, - - 103 



. - - - . abfprbent, 1 04 Febrifuge fait of Sylvius, 99 



. • . . . of adamantine fpar, 103, Feltfpar, - 124 



127 Ferruginous argillite, 130 



• . . - . aerated ponderous 107 . - clays, 131 



.---.argillaceous 103 hornftone, 132 



..... of bones, 106 .-- limeftone, 129 



..--.calgareous; 128 fandftone, 129 



elementary or fimple, 103 - — -'....« quartz, 132 



.....jargon, 103,127 Firedamps, - 88 



..... magnefian, 129,133 Fiih to defcribe - xii 



..... aeratec\ calcareous, 104 . . - . ceconomy of, ^191 



.....ponderous, 103 to preferve zo 



mm mm. filiceous, 103, 132, 134 Fixed air, 42, 45, 85, 92, 96 



. . . . . Sidneian, 103,128 in water, .45 



..... fimple, , - 103 . - - - alkali, 98 



..... ftrontian* 103,107 fal ammoniac, 65- 



verifiable, 105 Flint, - . - 122 



.- hornftone. 132 Flowers of arfenic, 78 



Earthy quartz, 132 Flu ate of lime,. - 105 



... ..... with actinolite, Fluor fpar, - ioe; 



132 volatile alkali, 101 



Echini, or fea eggs, to preferve, Fluoric acid gas, 82 



21, 193 Food of different nations 185 



Effervefcent barytes, 107 Forficula, - n. 4 



calcareous earth, Foffils, directions in collecting, 



104 t 93 



«... mineral fixed al- Fragile metals - 33 



kali, . - . * 100 Frogs to preferve, 21 



...foda, 46 Fuci, - « 192 



Effluvia of plants, \26 Fullers earth, - 113 



Fulmi* 



