30 BOOKS PUBLISHED BY 



SOLID MODELS, &.c.—Conti?i.ued— 



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

 object is thus nearly s feet high. A Market Cross — composed of 3 Slabs, 24, i3, 

 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 g 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, g inches 

 in diameter, and 12 inches long, divided lengthwise. A Hollow Sphere, g 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 Teacliing Practical Geometry (22 models), £$. 



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

 applied to mechanical drawing, in box, £1 ids. 

 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 ; He.xagon Pyramid, 14 inches 

 diameter, 22^ inches side: Square Pyramiil, 14 inches side, 22j^ inches side; 

 Cone, 13 inches diameter, 22j.< inches side ;_ Skeleton Cube, ig inches solid wood 

 1% inch square; Intersecting Circles, ig inches solid wood 2^ by 1% 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, 18 inches 

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

 17 inches side, 24 inches high ; Skeleton Cube, i(j inches side ; Intersecting Circles, 

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

 27 inches by 21 1^ inches. Stand. The Set complete, ^^14 13s. 

 Vulcanite set square, 5s. 

 Large compasses with chalk -holder, 5s. 



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



*Parkes's case of instruments, containing C-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, iSs. 

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

 Small compass in case, is. 



LARGE DIAGRAMS. 



ASTRONOMICAL : 



TWELVE SHEETS. By John Dkew, Ph. Dr., F.R.S.A. Prepared for the Com 

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



BOTANICAL : 



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

 Henslow, F.L.S. £2 ; on rollers, and varnished, £2 3s. 



CLASS. DIVISION. SECTION. DIAGRAM. 



f /Thalamifloral .. .. i 



Dicotyledon .. . . Angiospermous .. g^-' ;; ;; = & 3 



/ (, Incomplete . . . . 5 



^ Gymnospermous 6 



( Petaloid . . . . f Superior . . . . 7 



I (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. 

 £'^ 5s. the set. 



Catalogue and Index, is. 



" Models, S:c., entered as sets, cannot be supplied singly. 



