BAIRD &. TATLOCK (LONDON) LTD. 



6119 



6119 T Hygrometer, self-recording, in copper cover and iron base, j-day revolving drum. The 

 hygrometric portion can be fixed outside as shown, or inside copper cover, complete with 

 two coloured inks and one year's charts .. .. .. .. .. .. 7 15 



6120 



6120 s Thermograph, or recording thermometer, in all metal frame and hinged copper cover, 



as illustrated, with charts for one year . , . . . , . . . . . each 4 17 6 i 



1118 



