106 Mr. C. Tomlinson's Experimental Examination 



Jan. 21. 8.30 a.m. Upper, 43°. Lower, 421°. Outside, 43°. 



Feathers heaped up, and ring quite concealed. 



4.10 p.m. Upper, 54°. Lower, 53°. Outside, 50. 



Sun just left the window ; good part of the ring exposed, and 

 the form of the rest visible ; lower deposit very loose and woolly; 

 feathers of the upper crust lost their sharpness. 



Jan. 23. 12.0 p.m. Upper, 54°. Lower, 54£°. Outside, 55°. 

 Deposit very loose, and evidently avoiding ring. 



Jan. 27. 11.0 p.m. Shutters have been closed two or three 

 hours ; opened them, and found stars circulating in the clear 

 liquid. 



Jan. 28. 8.0 a.m. Upper, 42°. Lower, 39°. Outside, 39°. 

 Register, 32°. Abundant deposit ; top crust very dense, and 

 joining the bottom deposit on the side near the window. 



Jan. 29. 2.10 p.m. Upper, 60°. Lower, 59°. Outside, 62°. 

 Deposit greatly diminished. 



10.15 p.m. Upper, 50°. Lower, 49°. Outside, 50°. 

 Currents of stars in clear solution produced by cooling after 

 the shutters had been closed ; bright moon. 



Feb. 1. 



2.30 to 3.0 p.m. Upper, 61°. Lower, 59°. Outside, 56°. 



Sun on window after wet morning ; ring laid bare to a greater 

 extent than before noticed, a hollow vacant space being cleared 

 away behind it ; deposit very loose and woolly ; top crust more 

 compact and arched, with fern-like crystals projecting down. 

 8.30 p.m. Upper, 47°. Lower, 46. Outside, 45°. 



Clear liquid full of stars, and lower deposit closed in upon 

 ring, only the top of which is now visible. 



Feb. 2. This morning the bottle had to be moved for window- 

 cleaning ; shook up mixture, wiped bottle, and returned it about 

 1 p.m. to the window. The deposit subsided, but no crust 

 formed to-day, nor on the 3rd, until the shutters were shut in 

 the evening. Wind a little northerly ; lower deposit about half- 

 way over ring. At 11 p.m. clear liquid full of stars; crust 

 forming all round where the air, the glass, and the liquid meet ; 

 some feathers from crust falling upon the lower deposit : the 

 shutters being closed, the bottle about equal in temperature all 

 round. 



Feb. 4. 9.30 a.m. Upper, 44°. Lower, 43°. Outside, 44°. 



Very large feathers projecting from top crust downwards, and 

 also heaped up at bottom, evidently derived from the top crust, 

 and some now are slowly falling. 



Feb. 9. Deposits for some days very scanty on account of the 



