30 BOOKS PUBLISHED BY 



SOLID MODELS, be. 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), .5. 



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



applied to mechanical drawing, in box, i 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 ; Hexagon Pyramid, 14 inches 

 diameter,_ 22^ inches side ; Square Pyramid, 14 inches side, 22^ inches side ; 



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, 19 inches side ; Intersecting Circles, 

 19 inches side ; Plain Circle, 19 inches side ; Plain Square, 19 inches side. Table, 

 27 inches by 21^ inches. Stand. The Set complete, 14 135. 

 Vulcanite set square, 53. 

 Large compasses with chalk -holder, 55. 

 *Slip, two set squares and T square, 55. 



*Parkes's case of instruments, containing 6-inch compasses with pen and pencil leg, 55. 

 *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, 45. 6d. 

 Small compass in case, is. 



LARGE DIAGRAMS. 



ASTRONOMICAL : 



TWELVE SHEETS. By JOHN DREW, Ph. Dr., F.R.S.A. Prepared for the Com- 

 mittee of Council on Education. Sheets, 2. 8s. ; on rollers and varnished, .4 45. 



BOTANICAL : 



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

 HENSLOW, F.L.S. 2 ; on rollers, and varnished, 3 35. 



CLASS. DIVISION. SECTION. DIAGRAM. 



Thalamifloral .. .. i 



Dicotyledon .. . 



/ \ Incomplete . . . . 5 



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



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



Monocotyledons ..-( (Inferior.. ... ., "-.i. 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. 

 5 55. the set. 



Catalogue and Index, is. 



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



