BY R. T. BAKEK. 587 



amount of Ifevo-rotatory pinene (not less than 30 or 40 per cent.) 

 with some phellandrene, and less than 5 per cent, of eucalyptol. 

 Esters were present, the saponification number being 13-4. A 

 considerable amount of the oil boiled at a high temperature, and 

 consisted largely of the sesquiterpene usually found in this class 

 of Eucalyptus oils. The specific gravity at 15°C = 0-9095; rota- 

 tion ac= -8-1°; refractive index at 18°C = 1-4799; and required 

 6 volumes 80 per cent alcohol to form a clear solution. On 

 rectification, 54 per cent, came over below 175°C.(corr.); 7 per 

 cent, between 175-225°; and 32 per cent, between 225-270°, the 

 greater portion above 260°. The specific gravity of tlie first 

 fraction at 15° = 0-8705; of the second = 0-9006; of the third 

 = 0-9428. The rotation of the first fraction ai,= - 15-9°; of the 

 second = - 13-6. The refractive index at 18°C. of the first frac- 

 tion = 1-4662; of the second = 1-4722; of the third = 1-4967. On 

 again distilling the first fraction 20 per cent, came over below 

 157°C. This had sp.gr. at 15° = 0-8665; rotation a^ = -19-1°; 

 refractive index at 19° = 1-4644. The nitrosochloride was easily 

 prepared with this, and melted at the usual temperature. 



The oil of this species differs considerably from that of E. 

 steUtdafa, in the presence of such a large amount of pinene, in a 

 deficiency in phellandrene, and consequently a much less Isevo- 

 rotation, in the large amount of high Ijoiling constituents, and in 

 an increased ester-content. 



Melaleuca Irbyiana, sp.nov. 



A small glabrous tree or shrub, found growing in or near 

 swamps, with very slender filiform branchlets. Leaves very 

 small, alternate, ovate, lanceolate, acute or obtuse, concave and 

 broad above the base, erect or slightly spreading in the upper 

 portion, imbricate almost appressed in the new growth, striate, 

 mostly one line long. Flowers in compact or loose cylindrical 

 spikes, mostly about one inch long, the axis growing out before 

 the flowering is over, the floral leaves persistent. Calyx-tube cylin- 

 drical, about one line long, glabrous; lobes short, broad, striate, 

 shorter than the tube, with a pinkish tinge. Petals twice as long 



