1 Fes., 1902.] QUEENSLAND AGRICULTURAL JOURNAL. 129 
on the contrary becoming gentle and submissive. Thus, by a skilfully per- 
formed scientific operation, the life of this animal was saved, and she became 
an obedient and useful servant to her human master. ‘ 
In the cases which I have recorded ovariotomy was performed by the 
vaginal method, and the strictest antiseptic precautions were taken. The only 
instruments used were a bistoury caché and an écraseur, specially designed for 
use in the vaginal operation, and properly called the “ ovarian extirpator.” 
Should readers of this journal care to be made acquainted with the mode 
of using this new instrument, I shall be pleased to give full particulars in a 
future issue. 
The advantages of ovariotomy in relation to troublesome and vicious mares 
are very apparent, and in my opinion should not be overlooked.—Awstralasian 
Veterinary Journal. 
DRIED BLOOD. 
A cheap and rapid method for concentrating the quantities of blood 
collecting in abattoirs is described by its inventor inthe Technische Rundschau. 
The blood is injected in a finely pulverised state into an oven-shaped chamber 
open atthe top and brought into contact with a current of hot air ascending 
from below. All the water is evaporated in this manner, and the blood is 
carried to the receiving chamber. According to the inventor, the powder thus 
obtained is tasteless and contains 74°8 per cent. of digestive albumen. 
A BRANDING MIXTURE. 
_ The Breeders’ Gazette says:—We have had several complaints that 
druggists are in doubt as to compounding the formula for the New Zealand 
chemical branding mixture as published some months ago. The directions, as 
we printed them, are as follow :-— 
Barium sulphite and coal tar, thinned by equal parts of American potash 
and water and spirits of turpentine, each equal in measure to the original 
composition. 
We found no difficulty in understanding these directions, but for the 
benefit of those who are puzzled we put them in the form of a prescription, ° 
with full directions, as follows :— 
Oz. 
Barium sulphite ox 0 ae ae ap KS 
Coal tar a 0 on iG 
Mix thin with 
American potash... aoe nee 2 ox 82 
Turpentine... £43 a 00 a0) on oP 
Water... wr: cts pet ca an on bP 
Mix the barium sulphite and coal tar thoroughly as is required by the 
nature of the two substances. Mix the three last named—potash, turpentine, 
and water—also as required by their nature so as to secure perfect fluidity and 
amalgamation. Gradually then incorporate the two masses. 
A correspondent reports that he has had good success by clipping the hair 
from the point at which he wishes to apply the brand, but from the experience 
of others this is not necessary. The same correspondent states that a wooden 
brand will answer quite as well as one of iron. 
