528 Journal of the Department of Agriculture. — Dec, 1922, 



as against 547,920 doses tor the previous year. The difference wa& 

 due to provincial variations. 



IVire-ivorm Remedy. — The output varies annually ; this year it 

 was 5,466,500 doses, against 4,488.800 last year, bringing the total 

 issues since the remedy was introduced in 1917 to over 30i million. 

 For the powder form of administration 4451 Josing spoons and 634 

 dosing howls were issued. For lic[uid dosing, including sheep and 

 cattle, 13 liquid dosing spoons, 277 phials of hydrochloric acid, and 

 37 litre measuring tins were issued. 



Blue Tongue Vaccine. — A decrease in output has also to be 

 recorded, the issues being 712,43 6 doses, compared with 845,213 doses 

 the previous year, due probably lo the general financial depression 

 during the year, farmers preferring to run the risk of mortality rather 

 than incur further expenses. 



Red water and Gallsinknes!^ Vaccine. — Another decrease is to be 

 noted, 9171 doses having been issued as against 17,557 in the 

 previous year. The issues of this vaccine showed remarkable increases 

 during the period 1916 to 1921, over 117,000 doses being issued in 

 those five years, whereas in previous years the annual outpit remained 

 fairly constant, and averaged about 10,000 doses. 



Contagious Abortion Vaccine. — The issue of the " live "' con- 

 tagious abortion vaccine was commenced during the year, and a total 

 of 1745 doses dispatched up to 30th June. 



Dip Testing Materials. — 1320 litres (equivalent to 132,000 tests) 

 of dip-testing fluid, 1100 large tins, 160 small tins, 2950 books of 

 test-paper, and 85 measuring spoons were issued. 



Inoculation of Mules against Horse-sickness. — A sufficieiit quan- 

 tity of serum and virus was supplied for the inoculation of 3638 mules 

 against horse-sickness. Returns are available of 2413 inoculations 

 undertaken during the year: 1973 of these mules were inoculated at 

 owner's risk, and the remaining 440 under the insurance scheme. 

 The amount of the premiums paid into revenue totalled £445, against 

 which payments in respect of compensation amounted to £195. 



Microscopical, Pathological, and Serological Work. — The usual 

 microscopical and pathological routine work was undertaken at the 

 various laboratories, the number of specimens examined at Onderste- 

 poort amounting to 23,547, at Pietermaritzburg to 18,004, and at 

 Grahamstown to 690. The Onderstepoort and Grahamstown figures 

 show a slight decrease compared with last year, whereas at Pieter- 

 maritzburg an increase of 3995 examinations occurred. 



Agglutination tests for the diagnosis of contagious abortion were 

 continued at Onderstepoort and at Pietermaritzburg, 4089 being 

 undertaken at the foimer station and 774 at the latter, the proportion 

 of positive to negative results being approximately 2 to 7 in the 

 Transvaal and 1 to 6 in IN^atal. 



Approximately 800 various samples were received for examina- 

 tion, half of these being m connection with the investigational work 

 of the Division, and the other half having been received from the 

 public or from officers of other divisions. The total is distributed, in 

 round numbers as follows: — 200 dip samples, 50 dipping materials. 



