384 REPORTS ON THE STATE OF SCIENCE, ETC. 
The following series of portraits of Scientific Worthies, which have appeared in 
Nature, are published by Messrs. Macmillan & Co., Ltd. :— 
Steel and Photogravure portraits. 
The engraved surface of the Steel portraits averages 24 by 3 ins., and that of the 
Photogravure portraits 5 by 6} ins. 
Michacl Faraday Sir Richard Owen 
Thomas Henry Huxley James Clerk Maxwell 
Charles Darwin James Prescott Joule 
John Tyndall William Spottiswoode 
Sir George Gabriel Stokes Arthur Cayley 
Sir Charles Lyell Sir C. W. Siemens 
Sir Charles Wheatstone John Couch Adams 
Sir Wyville Thomson James Joseph Sylvester 
Robert Wilhelm Bunsen Dmitri Ivenowitsh Mendeléeff 
Lord Kelvin Louis Pasteur 
Baron A. E. Nordenskjold Sir Archibald Geikie 
Hermann L. F. Helmholtz Lord Lister 
Sir Joseph Dalton Hooker Stanislao Cannizzaro 
William Harvey Von K6lloker 
Sir George B. Airy Simon Newcomb 
J. Louis R. Agassiz Sir William Huggins 
Jean Baptiste Andre Dumas Lord Rayleigh 
Eduard Suess Dr. A. Russel Wallace 
Sir William Grookes Professor H. Poincare 
Sir William Ramsey Sir J. J. Thomson 
Sir Norman Lockyer 
Proof impressions of any of the above, on India paper, may be had from the 
Publishers at 5s. each. Office of Nature, St. Martin’s Street, London, W.C. 2. 
VI. ENGINEERING AND TRADES. 
Pictures of War Work in England. Joseph Pennell. (Fifty-one reproductions of 
drawings and lithographs in black and white of Munition Works, 6 by 4 ins. 
and 6 by 7} ins. London: W. Heinemann. Price 6s.) 
Do. enlarged lithographs. Messrs. Colnaghi and Obach. London: New Bond 
Street. Price £3 3s. each. 
War Work in America. Joseph Pennell. (J. B. Lippincott Co., London and 
Philadelphia. Price 9s.) 
Do. enlarged lithographs. (Keppel & Co., New York.) 
The Panama Canal. Joseph Pennell. (London : W. Heinemann.—Now out of print.) 
Pictures in the Land of Temples. Joseph Pennell. (London: W. Heinemann. 
Price 5s. net.) 
The Wonder of Work. Joseph Pennell. (London : W. Heinemann.—Now out of print.) 
Decorative Frieze in 18 pieces, representing the Trades. Galland, P. V., 10 by 15 ins 
£1 5s. the set. (Recommended by the Art for Schools Association.) Archi- 
tecture, Founding, Smith’s Work, Stone Cutting, Brick Laying, Joinery, 
Carpentry, Turning, Pottery, Glass Working, Sculpture, Painting, Textile 
Decoration, Musical Instrument Making, Metal Working, Engraving, Armourer’s 
Work, Arboriculture (Hotel de Ville, Paris), Ink Photos (The Architect). 
Motor Garage and Motor Car. 262, Royal Academy, 1921. 
Railway Sidings and Factory Chimneys. 654, Royal Academy, 192i. 
“The Ages Meet’ (Welding Tramway Rails, by Cleopatra’s Needle, Embankment). 
Stanhope Forbes. 156, Royal Academy, 1921. 
Photographs of the Frieze around the Albert Memorial. 
Mr. C. H. Creasey, Mellor Lodge, Marple, has also compiled a list of photographs 
illustrative of engineering features and including many remarkable prints of bridges. 
VII. GEOGRAPHY. 
A selection of photographs of land forms, etc., with the idea that they shall be 
solely or primarily decorative, should at the same time illustrate merely the simplest 
forms. Any such list is obviously capable of extension. No existing series of enlarge- 
ments has been found to be selected precisely from this point of view, but that published 
a 
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