§ * SIR W. J. COLLINS (St. Pancras, W.)
I beg to ask the President of the Local Government Board whether he will state what are the original sources of the lymph supplied from the National Vaccine Establishment; and whether any of the lymph supplied from that establishment has been derived directly or indirectly from the artificial inoculation of calves with human small pox.
§ MR. JOHN BURNS
The lymph supplied from the National Vaccine Establishment is in all cases derived direct from the calf, has been passed through a series of calves, and is in no instance directly derived from the artificial inoculation of calves with human smallpox. The usual method of renewing lymph for supply from the establishment is by vaccinating calves with vaccine lymph obtained from children, but it cannot be stated that this is always so.