^50 ®^ EXPECTORATED MATTER. 



would recommeDd the adoption of the following plan for a 

 meteorological diary. It should consist of twelve columns 

 headed as follows. 1st column, day ofthe month"; 2nd and 3rd 

 the maximum and minimum of the thermometer; 4th and 

 5th, ditto of barometer; 6th, the quantity of rain which 

 falls in the course of the day ; 7th, the quantity of evapo- 

 xation in square inches ; Sth^ the state of the hygronjeter ; 

 (de Luc's is perhaps the best) 9th and 10th, the direction 

 and force of the wind; 11th, the modifications of cloud; 

 and the 12th should be reserved for the register of occasional 

 meteorological phenomena, such, for example, as thunder 

 storms, meteors, &c. 



The insertion of these hints in your truly scientific Jour- 

 nal will oblige 



Yours, Sec. 



Ko.6, St. Helen's Place, THOMAS FORSTER. 



Mar. 8th, 1810. 



IV. 



Oil expectorated Blatter; by George Pearson M. D, 

 I\ K .S. 



/" Concluded from Page 229. J 



Sect. 111. Agency of Alcohol of Wine, 



Opaque yiscoua I. («) Jl. WO thousand five hundred grains of desic- 



matter dssic- cated expectorated matter of the fifth sort, sect. I, 5, being 



*^estedTnalco- ^^^ '^"^ twentieth of 50000 grains of matter previously to 



3iol. evaporation to dryness, were digested in four pints of alcohol 



of Si>irit oi wine, ofthe specific gravity of 815, water being 



1000. The mixture was exposed at a temperature from 



58° to 68° for a month, during which it was 'frequently 



shaken. A tincture of the colour of red port wine was 



then decanted from otFa blackish sediment. By means of 



a press, two ounces more ofthe tincture were obtained, 



(Jb) The undissolved residuary matte? being exsiccated 

 weighed 130 grains less than before digestion. On ex- 



posui^ 



