Penn, W., and the wampum belt, 14 Pennant’s _Account of London_, 124 Persian bindings, 58, 59 Peruvian records, 11 Petit, L., line engraver, 123 Peupin, wood engraver, 116 Pfeiffer, stipple engraver, 126 Pflanzmann, J., publisher, 115 Photographic facsimiles, 98 Photogravure, 136 Pierced vellum, 171 Pig-skin, 173 Pigouchet, printer, 107 “Pin-head” grained morocco, 178 Pinart, D., bookbinder, 191 Pine, J., line engraver, 118 Pisa’s, R. de, _Pantheologia_, 197 Pleydenwurff, W., wood engraver, 115 Pointillé engraving, 107 Polia, of Treviso, 105 Pompeian diptychs, 20 Porcelain types, 86 Porrett, wood engraver, 114 Portbury, E. and R. J., line engravers, 121 Portraits in watermarks, 72 “Post” watermark, 72 “Pot” watermark, 72 Prayer wheels, 27 Prehistoric caves, 2 Prevost, line engraver, 122 Prideaux, Miss S., bookbinder, 231 Prime staves, 7 Printing in Europe, 90 ” on Babylonian cylinders and bricks, 85 ” press, 93, 95 Printing paper in colour, 73 Proctor, R., author, 98 Prout, S., artist, 120 Pudsey, Bishop, library of, 185 Pugillaria, 20 Pye, J., line engraver, 120 Pyne’s _History of the Royal Residences_, 130 Pynson, R., bookbinder, 110, 193, 197 Q. Quartos, 74 Quaternions, 32, 33 Quinternions, 31 Quipus of Peru, 11 Quires, 32 R. Raffet, artist, 115, 133 Rag paper of Samarkand, 63 Rainer, Archduke, 64 Ratdolt, E., printer, 105 Ratisbon, Irish monastery at, 49 Raynald’s _Byrthe of Mankind_, 119 “Rectangular” style of binding, 223 Redon, O., lithographer, 133 Reeve, R., aquatint engraver, 130 Repton’s _Sketches of Landscape Gardening_, 130 Retroussage, 124 “Rex in Æternum vive” on book edges, 143, 144 Reynes, J., bookbinder, 192 Reynolds, S. W., mezzotint engraver, 128 Rhodes, R., line engraver, 121 Ribault, J. F., line engraver, 123 Richenbach, J., bookbinder, 199 Richter, A., artist, 116 Rinaldo and Armida, 112 Ring markings, 2, 3 Rivett-Carnac, Col. H. J., 3 Rivière & Son, bookbinders, 231 Roan leather, 175 Robins, H., line engraver, 121 Robinson, H., stipple engraver, 125 ” J. H., line engraver, 120 Roberts’ _Holy Land_, 134 Roce, D., bookbinder, 192 Rock markings, 2 Roffet, E., bookbinder, 232 Rogers’, S., _Italy_ and _Poems_, 120 ” _Pleasures of Memory_, 112 Rolls, C., line engraver, 120 Rolt’s _Lives of the Reformers_, 127 Roman diptychs, 20 ” engraved gems, 5 ” name brands, 5 Romney, Lord, 160 Rood, T., bookbinder, 191 Rosaries, 12 Rosetta stone, 3 Rossetti, D. G., artist, 113 Rouget, wood engraver, 114 Rough side of calf leather, 202 Rounded backs of books, 43 Roux, wood engraver, 114 Rowlandson, artist, 130 Royal Irish Academy, 49 Ruette, M., bookbinder, 240 Rune staves, 7 Runic inscriptions, 6