Miscellaneous Intelligence, 

 ds of Species, 



London, 1871. (Mac 



' of the theory of " Natural 8t'lo( 

 puLiishcd. At the same time, tli^ 



III. Miscellaneous Scientific Intell 



nthradte Coal Tnide of PenHS>ilvanhi.~l 

 i:n, a well known engineer at Pottsvijle, Pa.. 



e Coal' Trade'of rennsVhania. It ein!)iace: 



'lie Wyoming, and the Lykens \'alley, Sliamokin, etc. We tak( 



•^■:n 335 ^ "J ' • ocmug. .. ., . _.^.^ 



41,750 89,934 43,000 174,734 



■275,313 475,091 148,470 15,505 864,384 



690,456 1,782,93(5 827,823 57,684 3,358,899 

 * 1,821,674 3,270,516 2,941,817 479,116 8,513,123 

 '--^ 3,172,916 3,853,016 7,825,128 998,839 15,849,899 

 The Schuylkill trade began in 1822, with the exportation oi 

 MSOtons; the Wyoming, now twice the largest, in 1829, witl; 

 ',000 tons; the Lykens V^illey, etc., in 1839, mth 11,930 tons. 



-. Carbonic acid in outside and indoor air. — According U 

 parainations made at the Massachusetts Institute of Technology 

 '7 A. H. Pearson, under the direction of Prof. Storer, the aniouni 

 ; the Cupola of the State House, 15(.s 



f'^ii play 18, 1870), was -03139 per cent of vol 

 ^-t.Hoston, near the Institute of Technology, out ot n xnai.- on 

 :'inerent days, -03798 to -04999, and on one day (Aprd 1), 03194 ; 

 11 Clarendon Place, near Berkely st, -03371. ' According to the 

 same experimenter, the volume of carbonic acid m the air of a reci- 

 ^ation room of the Institute, after recitation, [we omit the date], 

 ^a^ found to be 08929 to -09762 p. c. ; in a small " weighmg room 

 7 *'''^ae, -13041 to -13205; in the Myrtle st. Grammar School, 

 /•'431 to -13659; in the Tremont St. id., '14335; the Richmond st. 

 W., -17781; in the Blossom st. id., -19037; in the Appletonst Pri- 

 mary bchool, -11092 ; in the Cooper st. id., -19927; m Music Hall, 

 ^remont st., -14045 ; in the Public Library waiting room, on three 

 'Wterent days, each, -13666, -13747, ■l9352.Secotid A?m. Bep. 

 '**• *^^«<e Board of Health, 1871. 



