[Sidenote: Solution of chloride of lime.]
2. For this purpose a solution of chloride of lime in water, in the proportion of one pound of the powder to one gallon of water, is made. For the lair of one animal from six to ten gallons of such fluid should be prepared. This fluid is now distributed over the whole surface to be disinfected, gradually, by squirting from a syringe, or by pumping through a force-pump, garden-engine, or by watering from a watering-pot or can with a finely pierced rose. All woodwork, stones, bricks, cement, mortar, all fixtures of whatever material, should be well wetted with the solution, and immediately be scrubbed with a hard brush. Floor and ceiling are also scrubbed, and the whole is left in this wet state covered with the chloride of lime solution for at least one hour, during which time care is taken that no parts become dry.
[Sidenote: 3. To be washed off after disinfection.]
[Sidenote: Precautions as to direction of clean water.]
3. As the chloride of lime and the products of its decomposing action upon infectious matters may be hurtful to cattle, these matters have to be carefully washed off by a second and final flushing. For this too much water and too much scrubbing cannot be employed. Care should be taken to apply the clean water always to the highest parts, so as to cause it to flow thence to the lower parts, and to wash away the waste from the lower parts before applying any fresh water to the upper parts.
[Sidenote: 4. Care not to carry back dirt by brooms, boots, &c.]
4. Care should also be taken to rinse and flush every broom which has worked away sediment and waste from the lower parts into and through the gutters and drains before applying it again to the clean upper parts. Care should also be taken that the working persons should not step from the dirty or partially cleansed places on to the clean ones, as this may suffice to bring infection back to the disinfected place.
[Sidenote: 5. Disinfection of workmen and tools.]
5. Lastly, all persons employed in this work, having swept and flushed the gutters with the same care as the lairs, are collected, together with all engines and tools which they have used, as near as possible to the sink or place of final egress of water from the premises, and there disinfected as will be described.