MISCELLANEOUS REPORTS, ETC.-continued.
Current Meters for use in River Gauging, by M. A.
Hogan, M.Sc., D.I.C.

1922

Price With net postage

s. d. s. d.

Tables of the Incomplete Gamma Function, edited by
Karl Pearson, F.R.S. 1922
Report of the Lathe Tools Research Committee,
Manchester Association of Engineers

TECHNICAL RECORDS OF EXPLOSIVES SUPPLY
No. 1. Recovery of Sulphuric and Nitric Acids from
Acids used in the Manufacture of Explosives :
Denitration and Absorption.
Manufacture of Trinitrotoluene (TNT) and its
intermediate products.
Sulphuric Acid Concentration. 1921

No. 2.

No. 3.

No. 4.

No. 5.

No. 6.

No. 7.

1920

1920

42 O 42 9

The Theory and Practice of Acid Mixing. 1921 12
Manufacture of Sulphuric Acid by Contact
Process. 1921

Synthetic Phenol and Picric Acid.
1921
Manufacture of Nitric Acid from Nitre and
Sulphuric Acid.

No. 8. Solvent Recovery.

18

12

12

976

609

'RED BOOKS" OF THE BRITISH FIRE PREVENTION COMMITTEE

TESTS WITH PLAIN CONCRETE SLABS MADE WITH VARIOUS AGGREGATES 212. Tests with Thames Ballast. Broken Granite Pit

Ballast, Stock Brick, Coke Breeze, Fletton
Brick

213. Series of Tests with Thames Ballast in various proportions and protective coverings to the soffit

216. Tests with Whinstone, Limestone, Sandstone, Furnace Clinker, Blast Furnace Slag, and old broken brick

217. Series of Tests with Broken Stock Brick in various
proportions and protective coverings to the
soffit
218. Tests with Tame Gravel, Leeds Gravel, Nuneaton
Granite, Appley Bridge Stone and Whinstone - 2
219. Series of Tests with Coke Breeze and Furnace
Clinker and Broken Stock Brick

224. Tests with Millstone Grit, Rowley Regis Granite,
Nottingham Basalt, Irish Andesite, Irish Pit
Pebble, Tay Gravel, Whinstone (Scottish),
Tame Gravel -

228. Series of Tests with Thames Ballast mixed with
Fine Clinker, Pan Breeze, Coke Breeze, and
Fine Stock Brick in lieu of sand

237. Tests with Buxton Limestone, Trachyte, Shap Granite, Red Mansfield, Troon Stone, Burnt Gault Clay, Bargate Stone and Slag

*To bring the results of the tests as a whole within the reach of all interested, complete sets (31 volumes) are being placed on sale at the price of £2 (by post £2 1s. 6d.). Orders for complete sets must be sent direct to H. M. Stationery Office, Imperial House, Kingsway, London, W.C.2.

"RED BOOKS" OF THE BRITISH FIRE PREVENTION COMMITTEE*-continued.

TESTS WITH PLAIN CONCRETE SLABS MADE WITH VARIOUS AGGREGATES

-continued.

net postage S. d. s. d.

243. Tests with Stoneycombe Stone, Meldon Granite, Price With
Teign Granite, Kentish Rag, Gas Works Clinker,
Pan Breeze, Burnt Gault Clay, Thames Ballast
and Nottingham Basalt

249. Tests with Corsham Stone, Mond Clinker, Sea
Shingle, Broken Fire Brick, Fletton Brick,
Portland Stone, Broken Stock Brick, Thames
Ballast

2

6 2 7

- 2 6 2 8

TESTS WITH REINFORCED CONCRETE Slabs MADE WITH VARIOUS AGGRE-
GATES AND VARIED THICKNESSES OF COVER AND PROTECTION TO THE
REINFORCEMENT

221. Tests with Furnace Clinker and Coke Breeze
222. Thames Ballast, Nuneaton Granite, Tame Gravel
223. Broken Stock Brick, Thames Ballast

226. Broken Stock Brick, Thames Ballast, Coke Breeze 227. Pan Breeze, Coke Breeze, Nottingham Basalt, Rowley Regis Granite

229. Trachyte, Slag, Darley Dale Stone, Thames Ballast (P)

231. Trachyte (retest). Shap Granite, Buxton Limestone, Thames Ballast (P)

232. Broken Stock Brick, Pan Breeze

234. Broken Stock Brick (retest), Troon Stone, Broken Stock Brick

238. Bargate Stone, Teign Granite, Burnt Gault Clay 239. Thames Ballast (1 yr. old), Burnt Gault Clay (retest)

242. Thames Ballast (1 yr. old), Coke Breeze (1 yr. old), Pan Breeze (1 yr. old), Clinker

244. Thames Ballast (P), two varieties, Thames Ballast and Nottingham Basalt, Thames Ballast (1 yr. old)

246. Teign Granite, Stoneycombe Stone, Kentish Rag, Meldon Granite

248. Trachyte (1 yr. old), Shap Granite (1 yr. old), Broken Stock Brick (1 yr. old), Buxton Limestone (1 yr. old)

250. Mond Clinker, Broken Stock Brick (1 yr. old and P), Coke Breeze (1 yr. old), Thames Ballast (1 yr. old and P)

251. Tests for conductivity of heat through slabs of various aggregates, with notes by Professor Charles H. Lees

252. Ditto. Second Series

26 28

2

7}

5

3

256. Memoir by Dr. Holmes, with Geological Notes and description of above aggregates

257. Memoir by Dr. Gulliver as to Mechanical Test with above aggregates

To bring the results of the tests as a whole within the reach of all interested, complete sets (31 volumes) are being placed on sale at the price of £2 (by post £2 1s. 6d.). Orders for complete sets must be sent direct to H. M. Stationery Office, Imperial House, Kingsway, London, W.C.2.