NEW SCIENTIFIC WORKS.

THE DYNAMICAL THEORY OF

SOUND.

By HORACE LAMB, Sc.D., LL.D., F.R.S.,

PROFESSOR OF MATHEMATICS IN THE VICTORIA UNIVERSITY OF MANCHESTER ;
FORMERLY FELLOW OF TRINITY College, Cambridge.

viii+ 304 pages, with 86 Illustrations. Demy 8vo.

In

12s. 6d. net. The science of Acoustics leads into many widely different fields, physical, physiological, psychological, and æsthetic. the present book Professor Lamb deals mainly with the physical theory of sound in its dynamical aspect. The treatment is therefore to a great extent mathematical, leading up to the study of the writings of Helmholtz and Lord Rayleigh, and supplementary to books which describe experimental methods in detail.

CONTRIBUTIONS TO ABDOMINAL SURGERY.

By HAROLD LESLIE BARNARD, M.S., F.R.C.S.,

LATE ASSISTANT SURGEON, LONDON HOSPITAL.

xix +391 pages, Illustrated. Demy 8vo.

18s. net.

During practically the whole of a short though brilliant career the Author devoted his attention to the Surgery of the Abdomen. His contributions on some of the most difficult problems of the subject have been universally recognized as advances on our previous knowledge, and his teachings are being extensively practised. In addition to Intestinal Obstruction, particular mention might be made of his investigations leading to advancements in the knowledge of Gastric Surgery, Acute Peritonitis, Acute Appendicitis, the Surgical Aspects of Subphrenic Abscess, etc.

PHYSIOLOGY OF THE SPECIAL SENSES.

A Manual for Students.

By M. GREENWOOD, JUN.,

SENIOR DEMONSTRATOR OF PHYSIOLOGY, LONDON HOSpital,

248 pages. 8s. 6d. net.

NOTICE.-Mr. EDWARD ARNOLD has pleasure in announcing
that in order to meet the convenience of Indian Universities and
Schools, he has made arrangements for keeping a stock of books at
Messrs. Longmans, Green & Co.'s establishments in BOMBAY and
CALCUTTA, from which addresses all Indian orders will be
despatched in future.

PREPARATORY READING BOOKS.

FOR KINDERGARTENS AND INFANT SCHOOLS.

Arnold's English Primers.
Primer I. Cloth, 2d.
Primer II. Cloth, 4d.
Arnold's Story Readers.

The Little Story Reader. In
words of one syllable. Illustrated.
3d.

Infant Story Reader I. 26
simple stories, with nearly 40
pictures. 6d.

Infant Story Reader II. 14
brightly-written stories.
trated. 6d.

Illus

Arnold's Stories for Little

People. Each contains 16 pages
of very large type, with good Illus-
trations and an attractive coloured
cover. 2d. each.

1. Sam's Pets.
2. Tom Lie-a-Bed.
3. Lost in the City.
4. Happy Katie.

Arnold's Infant Reader.
With Spelling Lessons, Tables,
Script, etc. Illustrated. Cloth, 6d.

COPY-BOOKS.

The Britannia Copy-Books. An entirely new series, prepared with the object of teaching a bold legible hand. The letters are sloped at an angle of fifteen degrees from the vertical, and the result of using these books is to form a flowing, pleasantly-rounded style, free from eccentricities, easy to write and easy to read. The series is complete in fifteen books, ranging from Large Hand to Text, Half-Text and Small. The later books give excellent specimens of letters, invoices, and business forms.

Books I.-XIV.. 2d. each.

Book XV., 3d,

THE BRITANNIA HISTORICAL PICTURES.

LIST OF THE SERIES.

1. The Building of Hadrian's Wall.
2. King Alfred's First Sea-Fight.
3. Harold's Last Stand at Hastings.
4. King John sealing Magna Charta.
5. Queen Philippa saves the Burgesses
of Calais.

6. The Wars of the Roses.
7. The Spanish Armada.

8. Charles I. going to Execution. 9. The Landing of William of Orange. 10. Wolfe scaling the Heights of Abraham,

11. Nelson at Trafalgar.

12. Waterloo: The Struggle at Hougoumont.

These pictures decorate the school, and serve to aid the teaching of history. They are reproduced by the Rembrandt process from drawings by R. Caton Woodville and A. Forestier.

Price 2s. 6d. each net; post free, 2s. 10d. 35s. net the set of twelve in portfolio; 36s. 6d. carriage free. 7s. 6d. net the portfolio separately; 8s. 6d. carriage free. 10s. 6d. net each, framed in oak and glazed, carriage free. Size of each plate, 32 × 24 inches.

Professor Oman writes: "They are most effective and artistic. I am specially pleased with Calais, the Romans on the Wall, Waterloo and Trafalgar, and Wolfe at Quebec-all most telling and accurate."

A Prospectus containing reduced reproductions of all the pictures will be forwarded post free on application.

Notes for Teachers on the Britannia Historical Pictures. Crown 8vo., paper, 2d.

PICTURES FOR WALL DECORATION.

Pictures of Birds and their Eggs. A series of beautifully Coloured Plates. Size, 12 x 9 inches. Price: unmounted, 6d. each net, or post free 7d.; mounted singly on boards, 12 x 15 inches, Is. each net. Also in handsome frames, singles, 2s. net. Mounted in sets of three (34 × 15 in.), 2s. 6d. net. Framed, 4s. 6d. net per set.

Four of these plates are out of print, the remainder being arranged as follows: SET I.-Blue Tit, Thrush, Chaffinch. SET II.-Bullfinch, Yellow Hammer, Robin. SET III.-Water Wagtail, Starling, Robin.

Animal Pictures. A series of twelve coloured pictures of British Wild Animals. Size about 15 × 10 inches. Price: unmounted, 9d. each; mounted on boards, 15 x 21 inches, Is. 6d. each; framed and mounted (unglazed), 3s. each. These prices are net.

LIST OF PLATES. I. Hare. 2. Rabbit, Weasel. 3. Rat, Mouse, Bat. 4. Hedgehog, Snail, Slug, Spider, Worm. 5. Otter. 6. Dormouse and Adder. 7. Deer. 8. Snake and Mole. 9. Bees. 10. Water-rat, Frog, Toad, Newt. 11. Squirrel. 12.

Fox.

Fish Pictures. A series of eight pictures of representative types of the fish found in the rivers and seas of the British Isles. Uniform in size and price with the "Animal Pictures."

4. Plaice

LIST OF PLATES 1. Herring, Sprat. 2. Cod. 3. Haddock, Mackerel.
Salmon Trout. 6. Pike, Stickleback, Minnow. 7. Eels. 8. Bream-

Lobster, Crab. 5.
Perch, Roach.

OBJECT LESSONS.

Arnold's Object Lessons. Standard Manuals for Object Lesson teaching, with blackboard illustrations and full notes of Lessons. Books I.-III., Is. each.

Arnold's Object Readers. Elementary Readings on Common Things, including Simple Science and Natural History. With beautifully coloured plates.

Book I., 10d. Book II., Is. Book III., Is. 3d.

Arnold's "G. S." Object Readers. Lessons in Geography and Elementary coloured plates.

For Schools where Science are combined. With

Book I., 10d. Book II., Is.

Book III., Is. 3d.

ENGLISH READING BOOKS.

INCLUDING GEOGRAPHICAL AND HISTORICAL READERS. Arnold's Country-Side Readers. An entirely new series of General Literary readers for schools in rural and suburban districts. Beautifully illustrated in colour and black and white.

Is. 6d.

Strongly bound in green cloth.

Arnold's Seaside Reader. Crown 8vo., 264 pages, price With four coloured plates and a large number of black and white Illustrations. This book has been specially prepared for pupils in towns and villages on or near the coast.

The King Alfred Literary Readers. In eight volumes, with coloured and black and white Illustrations.

A splendid general course of reading, with interesting original lessons and a large variety of selections from the best authors. Well printed and strongly bound in cloth.

Teachers Aid.-"We have nothing but admiration for this excellent set of Readers. They are strong at every point-extracts well and judiciously selected, matter fresh and crisp, lessons well graded, illustrations numerous and artistic (many in colour), type bold and clear, binding strong and serviceable, and the whole get-up of the very best. certainly no better Readers in the market."

There are

The Sesame Readers.

A new series of graduated general reading books, based on the idea that reading is an "Open Sesame" to the treasures of literature and knowledge. Well printed and illustrated. and strongly bound in cloth.

Arnold's Junior Story Readers. This series has been designed to meet the demand for interesting stories told in suitable language for the Junior Classes. Each story is complete in itself, and written in a very simple narrative style, calculated to develop a child's power of expression, and love of reading. Great attention has been paid both to paper and type, and suitable illustrations add to the attractiveness of the series.

Each 48 pages.
LIST OF

1. The Snow Queen.

2. Dick Whittington.

3. Snowdrop and the Seven Dwarfs.

4. Tom Thumb.

5. King Arthur and His Knights.

Price 2d. Illustrated.

THE SERIES.

Britannia History Readers.

6. Aladdin.

7. Robin Hood.
8. Uncle Remus.

9. The Story of Hiawatha. 10. The Merchant of Venice. 11. Gulliver's Travels.

12. Tom the Chimney Sweep.

A complete school course in

History, illustrated with reproductions of famous historical paintings.
Introductory Book. IS. Stories from British History.

Book I. Is. 3d. From the Earliest Times to the Death of Elizabeth.
From the Accession of James I. to the Accession

Book II. Is. 6d.
of Victoria.

Book III. Is. 6d.
Book Illa.
Is. 6d.
Book IV. Is. 6d.

The Reign of Queen Victoria.

Men and Movements in British History.
Men and Movements in European History.

The Guardian.-"The five volumes of Mr. Edward Arnold's 'Britannia History Readers' are pre-eminent among the many excellent books of their class that have been published in recent years. Others are as clearly printed and as strongly bound, but none that we have yet seen are so well illustrated, so sensibly planned, or written in a manner so well calculated to interest and instruct in the right way the children in elementary schools and the lower forms of secondary schools."