Glauert replies to Matthews' correspondence of 11 March 1936, informing him that a killing bottle has been sent to the school.
Glauert has included instructions for its use in his letter.
Glauert reminds Matthews that the killing bottle contains cyanide and must therefore be kept away from children.
See: File A220-75-17 Natural Science - Enquiries and Requests
SeeAlso: A220-75-17-18
SeeAlso: A220-75-17-19
SeeAlso: A220-75-17-20