30 BOOKS PUBLISHED BY 



SOLID MODELS, S^c— Continued— 



the body of the obelisk), 3 feet high ; i Pyramid, 6 inches base ; the complete 

 object is thus nearly 5 feet high. A Market Cross — composed of 3 Slabs, 24, 18, 

 and 12 inches across, and each 3 inches high ; i Upright, 3 feet high ; 2 Cross Arms, 

 united by mortise and tenon joints ; complete height, 3 feet 9 inches. A Step- 

 Ladder, 23 inches high. A Kitchen Table, 14^ inches high. A Chair to corre- 

 spond. A Four-legged Stool, with projecting top and cross rails, height 14 inches. 

 A Tub, with handles and projecting hoops, and the divisions between the staves 

 plainly marked. A strong Trestle, 18 inches high. A Hollow Cylinder, 9 inches 

 in diameter, and 12 inches long, divided lengthwise. A Hollow Sphere, 9 inches 

 in diameter, divided into semi-spheres, one of which is again divided into quarters ; 

 the semi-sphere, when placed on the cylinder, gives the form and principles of 

 shading a Dome, whilst one of the quarters placed on half the cylinder forms a 

 Niche. 



*Davidson's Apparatus for Teaching Practical Geometry (22 models), £k,. 



*Binn's Models for illustrating the elementary principles of orthographic projection as 

 applied to mechanical drawing, in bo.x, £z los. 

 Miller's Class Drawing Models. — These Models are particularly adapted for teaching 

 large classes ; the stand is very strong, and the universal joint will hold the 

 Models in any position. Wood Models : Square Prism, 12 inches side, 18 inches 

 high ; Hexagonal Prism, 14 inches side, 18 inches high ; Cube, 14 inches side ; 

 Cylinder, 13 inches diameter, 16 inches high ; Hexagon Pyramid, 14 inches 

 diameter, 22^ inches side: Square Pyramid, 14 inches side, 22 J4 inches side; 

 Cone, 13 inches diameter, 22^^ inches side ; Skeleton Cube, 19 inches solid wood 

 i|^ inch square ; Intersecting Circles, 19 inches solid wood 2j:t by ij^ inches. 

 Wire Models : Triangular Prism, 17 inches side, 22 inches high ; Square Prism, 

 14 inches side, 20 inches high : Hexagonal Prism, 16 inches diameter, 21 inches 

 high ; Cylinder, 14 inches diameter, 21 inches high ; Hexagon Pyramid, i8 inches 

 diameter, 24 inches high ; Square Pyramid, 17 inches side, 24 inches high ; Cone, 

 17 inches side, 24 inches high ; Skeleton Cube, it) inches side ; Intersecting Circles, 

 79 inches side ; Plain Circle, ig inches side ; Plam Square, 19 inches side. Table 

 27 inches by 2iJ4 inches. Stand. The Set complete, ;^i4 13s. 

 Vulcanite set square, 5s. 

 Large compasses with chalk-holder, 55. 



*Slip, two set squares and X square, 5s. 



*Parkes's case of instruments, containing 6-inch compasses with pen and pencil leg, 5s. 



*Prize instrument case, with 6-inch compasses, pen and pencil leg, 2 small compasses 

 pen and scale, i8s. 

 6-inch compasses with shifting pen and point, 4s. 6d, 

 Small compass in case, is. 



LARGE DIAGRAMS. 



ASTRONOMICAL : 



TWELVE SHEETS. By John Drew, Ph. Dr., F.R.S.A. Prepared for the Cora 

 mittee of Council on Education. Sheets, £2. 8s. ; on rollers and varnished, ;£4 4s. 



BOTANICAL : 



NINE SHEETS. Illustrating a Practical Method of Teaching Botany. By Professor 

 Henslow, F.L.S. £1; on rollers, and varnished, ^3 3s. 



CLASS. DIVISION. SECTION. DIAGRAM. 



( / Thalamifloral .. .. i 



T^V.» 1 ^ jAngiospermous . . \9''"^'?^S'''\ '^ ■•='^3 



Dicotyledon .. .. < of j Corolhfioral .. .. 4 



/ \ Incomplete . . . . 5 



V Gymnospermous . . . . . . . . . . 6 



I Petaloid . . . . f Superior . . . . 7 



Monocotyledons ..\ | Inferior.. .. .. 8 



( Glumaceous. . .. .. .. .. .. 9 



ILLUSTRATIONS OF THE PRINCIPAL NATURAL ORDERS OF THE 

 VEGETABLE KINGDOM. By Professor Oliver, F.R.S., F.L.S. 70 Imperial 

 sheets, containing examples of dried Plants, representing the different Orders. 

 £c, 5s. the set. 



Catalogue and Index, is. 



' Models, &c., entered as sets, cannot be supplied singly. 



