Streatham Laboratories, 197, Wandsworth High Street, London. S.W.18, manufacture an effective but inexpensive fire extinguisher. This Cyea 13 comprises a flexible, transparent nylon bottle from which CCL4 can be directed in a fine spray. The extinguisher can be operated with one hand, is light, safe for electrical fires, leaves no deposit or stain, and costs only 12s, 6d., complete with clip bracket, or 13s. 9d. by post. Every house and office, let alone car and garage, should be provided with one. — W. B.