Nr. 51 H4. 



Clamps, Table Stands, Levelling Boards. 



205 



51132. 



1: 8. 



51133. 



1 : 8. 



51134. 



1: 8. 



51130. 1 : 15. 



51 131. 1 : 14. 



51142. 1:9. 



51,125. -The preceding, iron parts entirely excluded from construction 



5 J , 1 26. - - The preceding, table adjustable by rack and pinion, Figure, metal 

 parts of iron - 



51.127. -- idem, iron-free pattern 



51.128. Laboratory Stand, lighter pattern, Figure, with table top, 50 cm diameter, ad- 

 justable by crank motion, metal parts of iron 



51.129. -The preceding, free from iron . 



51.130. Gauss Stand, light pattern, Figure, of oak, free from iron, without crank motion, 

 table top 30 cm diameter 



51.131. --The preceding, simpler, fixed by pegs, Figure 



Tables for setting up apparatus, Figures (W. D., Fig. 31), with iron foot, brass pillar and 

 polished wood top 15 cm diameter. 



List No. 51,132 51,133 51,134 



Adjustable from 20 30 25 40 35 50 cm height 



0.6.0 0.7.0 0.8.0 



The preceding, iron-free, with zinc tripod (M. T., p. 9). 



List No. 51,135 51,136 51,137 



Adjustable from 20 30 25 40 35 50 cm height 



0.8.0 0.9.0 0.10.0 



The preceding, with double extension, thus increasing the range of adjustment, 

 Fig. 51,139, -p. 204. 



List No. 51,138 51,139 51,140 



Adjustable from 22 50 30 60 35 85 cm height 



0.12.0 0.14.0 0.16.0 



51.141. Adjustable, rotary Table for prisms, etc 



51.142. Levelling Board and Slate Slab, in oak frame, Figure, 50 cm long, 30 cm wide, 

 with 4 levelling screws, quite plane, for erecting apparatus 



51.143. - - The preceding, with cast iron top, 50 cm long, 35 cm wide, planed, with 

 4 levelling screws , 



s. (I. 



2. 5. 



3. 5. 

 3. 15. 



3. 2. 

 3.12. 



2. 

 0. 18. 



51,144. Levelling Board, round, 30 cm diameter, with 3 levelling screws. 



0. 15. 

 1.16. 



1.12. 

 0. 10. 



Kl. 108, 3909, 



5556, 

 152. 



