Part 22

Prof. ARTHUR THOMSON, Aberdeen:--“A fascinating, stimulating, and instructive lecture.”

Write for a Prospectus containing all particulars to the Manager of

=THE LECTURE AGENCY, Limited, The Outer Temple, LONDON, W.C.=

=THE PICTURES IN THIS BOOK= were taken with, and amply prove the suitability of

THORNTON-PICKARD =CAMERAS & SHUTTERS= FOR NATURAL HISTORY WORK.

“IMPERIAL PERFECTA.”

A New and Perfected Triple Extension Camera at a Low Price.

SPECIAL ADVANTAGES:--

Extra Wide front and Bellows. Independent Rising Front at shortest focus.

FOCUSSING CAMERA BODY with Extra Rack and Pinion.

SPECIFICATION:

Triple Extension Camera with Brass Turntable, 3-fold Ash Stand, Time and Instantaneous Shutter with Speed Indicator, Double Book-form Dark Slide, T.P. Beck Symmetrical Lens with Iris Diaphragm F 8.

=PRICE=

=½-pl. ... £4 4 0 1-pl. ... £6 6 0=

=IMPERIAL FOCAL PLANE TWO-SHUTTER OUTFIT.=

=An Ordinary Stand Camera= for General Work.

=A Focal Plane Camera= for High-Speed Photography.

=A Triple Extension Camera= for long-focus Views, Copying, Enlarging, and Telephotography.

=A Camera with Two Shutters=, giving:--Time Exposures, Instantaneous Exposures from 1/15 to 1/90 sec. Focal Plane Exposures from 1/100 to 1/500

=COMPLETE OUTFIT=, ½-Plate Size, comprising Camera, 2 Shutters, Stand, Slide, and Beck Lens.

=Price £4 15 0=

=Complete Catalogue post free. THORNTON-PICKARD CO., LTD., ALTRINCHAM.=

=NATURAL HISTORY WORKS= BY =R. KEARTON, F.Z.S.=

With Illustrations from Photographs taken direct from Nature by CHERRY and RICHARD KEARTON.

=British Birds’ Nests.= New and Enlarged Edition.

With 1 Rembrandt and 17 Coloured Plates, and Illustrations from Photographs taken direct from Nature by CHERRY KEARTON. Cloth gilt, =21s.= net.

=Our Bird Friends=. With about 100 Illustrations from Photographs. Cloth gilt, =5s.=

=Strange Adventures in Dicky-Bird Land: Stories Told by Mother Birds to Amuse their Chicks and Overheard by the Author.= Lavishly Illustrated. Cloth, =3s. 6d=.; cloth gilt, gilt edges, =5s.=