| 12406 | 10111 | copyright Ascot Gas Water Heaters Ltd | Notes relating to the physics and chemistry of heating water by gas-fired appliances | 1938 | WCP | Friedm |
| 12407 | 10110 | copyright Ascot Gas Water Heaters Ltd | Hardness of water, its bearing on water heating | 1936 | WCP | Friedm |
| 12408 | 13084 | issued under the authority of the Director of Hygiene, War Office | Water supplies in the field : notes for medical officers | 1941 | WCP | War Of |
| 12409 | 13120 | Southern Water | Water supply byelaws : made under Section 17 of the Water Act 1945 for preventing waste, undue consumption, misuse or contamination of water | 1989 | WCP | Southe |
| 12410 | 13107 | issued by S D Askew | Metropolitan Water Board : byelaws made by the Board on 21st July, 1950, under Section 16 of the Metropolitan Water Board Act 1932, and on 22nd Februa\\ | 1960 | WCP | Askew, |
| 12411 | 13096 | edited by C W Stoker | The water supply of London | 1949 | WCP | Stoker |
| 12412 | 13119 | issued by Southern Region Byelaws Liaison Group | The water byelaw guidance notes | 1989 | WCP | Southe |
| 12413 | 13104 | George William Newton under the pseudonym of A E R Plumb | Ballvales : stopcocks and hemp | 1994 | WCP | Plumb, |
| 12414 | 13105 | A F E Wise | Drainage pipework in dwellings : hydraulic design and performance | 1957 | WCP | Wise, |
| 12415 | 13095 | HMSO | Public Health Act, 1936 | 1936 | WCP | HMSO |
| 12416 | 13112 | J J Barton | Domestic heating data and examples in S.I.metric and imperial units | 1974 | WCP | Barton |
| 12418 | 10107 | E H Williamson | Data book for pipe fitters and pipe welders | 1977 | WCP | Willia |
| 12419 | 10101 | Leslie Rayner | Questions and answers on ventilating and air conditioning | 1946 | WCP | Rayner |
| 12420 | 13097 | | Gasfitting : Technical Publication No. 15 | 1945 | WCP | |
| 12421 | 13077 | issued by British Gas | Gas in housing : a technical guide | 1988 | WCP | Britis |
| 12422 | 13122 | S Barlow Bennett | A manual of technical plumbing and sanitary science | 1925 | WCP | Bennet |
| 12423 | 13121 | G Eric Mitchell | Modern sanitary engineering | | WCP | Mitche |
| 12424 | 13113 | issued by the Allied Ironfounders Ltd | Heating manual for domestic and industrial boilers & allied radiators | 1964 | WCP | Allied |
| 12425 | 13101 | David H Beattie | Domestic hot water supplies and central heating | 1966 | WCP | Beatti |
| 12426 | 14122 | Colin Brain | Finds Research Group 700-1700.Datasheet 28 .English Stemmed Drinking Glasses 1642-1742 | 2000 | E/72 | Brain |
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