152 Domestic J^oticcs. 



To these great and useful properties, which will be appreciated 

 and applied in the navy, and in civil and domestic buildings, the au- 

 thor has added other applications, which, without having the same 

 utility, hold out new materials and means for the arts. He colors 

 timber with shades so various and so curiously marked, that the 

 commonest wood may be used with much eftect, for inlaying. The 

 pyrolignite of iron only, gives a brown tint, which harmonizes well 

 with the natural color of the parts of the wood which are too close 

 for the pyrolignite to penetrate. 



By introducing a tanning matter, after the pyrolignite ink is pro- 

 duced in the body of the wood, it is thus tinted either blue or gray. 



By making the wood absorb pyrolignite of iron, and then prussate 

 of potashes, Prussian blue is produced. 



By introducing, successively, acetate of lead and chromate of pot- 

 ashes, yellow chromate of lead is formed. 



By introducing into the same trunk, pyrolignite of iron, prussate, 

 acetate of lead, and chromate of potashes, shades of blue, green, 

 yellow, and brown are produced, which have the most varied eftects. 



These compositions, capable of causing so many different colors, 

 may be varied ad infinitum: the application depends on the taste of 

 the operator. Chemistry is sufficiently rich in reactions of this kind, 

 to satisfy the most extravagant wants and caprices. 



The author, M. Boucherie, has bestowed great labor and long 

 reflection upon the subject, and his results have not been found by 

 chance. The Commission state that the ideas and opinions he sets 

 forth, are supported by facts previously known, and those which he 

 has made public. The subject is considered as one of much impor- 

 tance, and they voted that M. Boucherie's memoir should be placed 

 in the collection of works by foreign savans, and that a copy be 

 transmitted to the ministers of Agriculture and Commerce, of Public 

 Works, of the Marine, Finance, and War. — (Gard. Mag.) 



Art. II. Domestic Notices. 



Forest Trees of Massachusetts. — Rev. G. B, Emerson, of Boston, 

 who has been employed by the Commonwealth to make a report 

 upon the forest trees of the State, delivered an address upon the 

 subject, at the last agricultural meeting of the season, held at the 

 State House, on Thursday, March 18th. Mr. Emerson has, for a 

 long period, been interested in the subject, and for more than twenty 

 years has made the forest trees of the vState his study. As a source 

 of recreation and pleasure, as well as for tiie benefit of exercise and 

 consequent health, he has visited our extensive forests, and exam- 

 ined and made himself familiar with all our fine trees and shrubs. 

 The substance of his long experience and attention to the subject, 

 will probably be given in a report, which will be published at the ex- 

 pense of the State. 



