330° Scientific Intelligence. [Aprit, 
in the gauze, if the gauze be burst by the explosion, all is lost. 
Will a bomb inclosed in metallic gauze explode in a magazine 
without firing it? 
To Sir H. Davy all credit is due for the perseverance with which 
he has continued to review, and endeavoured to improve, the first 
suggestions of his mind, and for the benevolent purposes by which 
his labours have been actuated. 
- Complete success seems not to be attainable in any of the ways 
attempted, and security should rather be expected from the change 
of system which has been before recommended. 
VI. Results of Hygrometrical Observations made in the Basin of 
the Atlantic Ocean. 
Quant. of vapour) Quantity of water 
Period of Tiata: contained in the evaporated in an 
the obser-|Latitude, BR aig aa does 
vations, Centigrade|Hygrom.|To satu-| In The air In 
therm, ration. | reality. |being dry.| reality, 
1799. (a) Gram,|(0)Gram,| (© Milli- (a) Mini. 
; metre, metre, 
June 9 | 39° 10 14°50 82° 14-6° 11°49 0°53° 07139 
15 | 30 36 20°0 857 20:0 16°2 0-74 O14 
16; 29 18 20°0 83°8 20:0 157 O74 0-16 
30 | 18 53 21-2 815 21°3 16:0 0-79 0°20 
July 44,16 19 22°5 88 22°9 19-4 0°85 0-13 
10 | 12 34 24:0 89 24:8 21°5 0-93 0-713 
12 {10 46 25:4 90 26°7 23°5 101 0°12). 
Te Fey aa | 25°0 92 26°38 23°8 0-98 0:0 
Humboldt’s Personal Narrative, vol. ii. p. 90, 
VII. Curious Cause of Headach. 
A gardener’s wife at Vienna was, at the age of 24 years, seized 
by a violent headach, which continued for several years, and drove 
her almost to despair. She was at last advised to take snuff asa 
remedy, in order to promote a discharge of mucus. Happening to 
have some assafcetida in the house, she mixed it with the snuff, on 
the supposition that it might increase the effect. ‘The consequence 
was, that a worm was discharged from the nostril similar in appear- 
ance to the common grub. ‘This circumstance induced her to con- 
tinue to use the mixture of assafcetida and snuff. Eight more 
worms were discharged, In short, by the use of the remedy, 48 
worms in all were et and the headach was completely re- 
moved. Dr. Frank, who relates the case, supposes that the worms 
had been lodged in the frontal sinus. 
VIII. Strength of Iron. 
An experiment was lately made at Blackwall to determine the 
strength of the iron employed in the manufacture of iron cables. 
Jt was found that an iron wire 14 inch in diameter was broken by a 
weight of 40 tons; therefore an iron wire of one inch in diameter 
