28, UPPER GOWER STREET. 



11 



DRAWING. 



Lineal Drawing Copies for the 



Earliest Instruction. Comprising 200 Sub- 

 jects on 24 sheets, mounted on 12 pieces of 

 thick pasteboard. By the Author of 

 " Drawing for Young Children." In a Port- 

 folio, 5*. 6d. 



Drawing Copies for Elementary 



Instruction. By the Author of " Drawing 

 for Young Children." 2 Sets, each consist- 

 ing of 12 Subjects, mounted on thick paste- 

 board. 3*. 6d. each Set, in a Portfolio. 



Deacon's Elements of Perspec- 

 tive Drawing, or the Science of Deline- 

 ating Real Objects. Being a Manual of 

 Directions for using a Set of Models, com- 

 posing a variety of Picturesque Forms. 

 Suitable for the Practice of Beginners. 

 Illustrated with Eight Plates, 8vo. 4*. 



Drawing Models, consisting of 



Forms for constructing various Buildings, 

 Gateways, Castles, Bridges, &c. The Build- 

 ings will be found sufficiently large to be 

 drawn from by a numerous Class at the 

 same tune. In a Box, with a small Trea- 

 tise on Drawing and Perspective. Price 

 21. 10*. Length of the Box, 18J inches ; 

 breadth, 13 inches ; height, 8J inches. 



TrachselFs Drawing Models, 



consisting of Rectilinear Figures, Polygonal 

 and Mixtilinear Models, Models chiefly for 

 Shading, and Models for application and 

 further practice. Price of the complete set 

 1W. Any Figure may be purchased 

 separately. 



The whole Collection, with the exception of 

 the houses, is painted white, to resemble 

 plaster. 



A complete Collection on a larger scale, such 

 as that used in the Mechanics' Institu- 

 tion, Liverpool, Ibl. 



*$* A detailed Prospectus may be had o 

 application. 



Drawing Materials. 



A Quarto Copy Book of 24 leaves, common 



paper, 6d. 

 Ditto . . . ditto 



paper of superior quality, 1*. 3d. 

 Pencils with very thick lead, B.B.B. 2s. per 



half dozen. 

 Ditto .... ditto . . F. at 



1*. 6d. ditto. 



Drawing Chalk, 9il. per dozen sticks, in a Box. 

 Port-crayons for holding the Chalk, 4d. each. 



EDUCATIONAL MODELS 



FOR THE USE OF SCHOOLS, MECHANICS' INSTITUTIONS, AND FOR 

 PRIVATE INSTRUCTION. 



A Set of Apparatus for Hydro- 

 statics, Hydraulics, and Pneumatics ; with 

 a Pamphlet containing full Descriptions 

 and Directions for Performing many Ex- 

 periments. Price 61. 6s. in a box. 



Apparatus for Cohesion, Capil- 

 lary Attraction, Electric and Magnetic 

 Attraction, Impenetrability and Inertia ; 

 with Descriptions and Diagrams. Price 

 21*. in a box. 



A Machine for Illustrating Cen- 

 trifugal Motion; including a representa- 

 tion of the Governor of a Steam Engine. 

 In a box, 10*. 



Att wood's Machine for Explain- 

 ing the Laws of Falling Bodies: with 

 Apparatus attached for Illustrating the 

 Theory of the Pendulum. Price of Att- 

 wood's Machine, with a " Companion," 

 21. 2s. ; additional Apparatus, for the Pen- 

 dulum, II. Is. 



Sets of Mechanical Powers; 



containing the Lever Wheel and Axle 

 A Series of Pulleys The Inclined Plane- 

 Wedge Screw; with Examples of the 

 Parallelogram of Forces Centre of Gravity 

 Friction Collision of Elastic Bodies- 

 Compound Lever. t. d. 



1. For large Lecture-rooms (size of 



the frame : height 3 feet 1 inch; 



width, 3 feet) 880 



2. For Schools and smaller Lecture- 



rooms (height of the frame, 2 

 feet 6 inches; width 2 feet 3 

 inches) 550 



3. A Smaller set, omitting the Pa- 



rallelogram of Forces and Col- 

 lision of Elastic Bodies (height 

 of the frame, 2 feet 1 inch; 

 width, 1 foot Hi inches) . . 2 12 6 



4. A Commoner Set (height of the 



frame, 2 feet ; width, 19 inches) 1 6 3 



The Bent Lever. Convertible 



into a Bent Lever or Toggle Joint Press. 

 With weights, and a description. Price 10*. 



