Fig. 108C. Side view of bolt and springs. Fig. 109C. Front view, showing method of inserting the key. Fig. 110C. Front view of iron padlock from Cairo, also in common use in Naples at the present time. Fig. 111. Revolving key for raising tumblers, found in London ('La Ferronnerie'). Fig. 112. Revolving key for raising two tumblers, found in Lothbury, London ('Archæological Journal').] [Illustration: PLATE IX. _Wyman & Sons, Printers, Gt. Queen St. London, W.C._] [Illustration: PLATE X. Figs. 113 to 116. Modern wooden tumbler lock, adapted to a revolving key, from India (India Museum). Fig. 113. Front view. A, bolt. Fig. 114. Longitudinal section. Fig. 115. Transverse section. Fig. 116. Key. Figs. 117 to 121. Modern wooden Chinese tumbler lock, the tumblers raised by a T-shaped key; the bolt shot with a revolving key, or handle, _a_. Fig. 117. Front view. Fig. 118. Transverse section, A B. Fig. 119. Longitudinal section. Fig. 120. Top view of bolt. Fig. 121. Top view of key. Fig. 122. Roman iron key, found in London. Fig. 123. Key from Chalons ('La Ferronnerie'). Fig. 124. Key from Museum at Saumur ('La Ferronnerie'). Fig. 125. Key from Museum at Saint Germain ('La Ferronnerie'). Fig. 126. Modern English latchkey. Fig. 127. Lock with complex wards, used in the Middle Ages. Figs. 128 to 130. Modern tumbler lock found at Funtley, Hants, belonging to Mr. CHUBB. Fig. 128. Longitudinal section. Fig. 129. End view and section. Fig. 130. Top view of bolt. Fig. 131. BARRON'S tumbler lock (TOMLINSON 'On Locks and Keys').] [Illustration: PLATE X. _Wyman & Sons, Printers, Gt. Queen St. London, W.C._] End of the Project Gutenberg EBook of On the Development and Distribution of Primitive Locks and Keys, by Augustus Pitt-Rivers