DISTEMPER IN DOGS. 



13 



cooled rapidly ; to prevent crystalization ; 

 the metal then takes a cast of the writing, 

 and when it is immersed in slightly warm 

 water to remove adhering gum, impres- 

 sions may be taken from it as from coj)per 

 plale. 



ANOTHER METHOD. 



Put a little sugar into common writing 

 ink, and let the writing be executed with 

 this upon common paper, sized as usual. 



When a copy is required, let unsized 

 paper be taken and slightly moistened 

 with a sponge. Then apply the wet paper 

 to the writing, and passing lightly a flat 

 iron of moderate heat, such as is used by 

 laundresses, over the unsized paper; the 

 copy will be immediately produced: this 

 method requires no machine or prepara- 

 tion, and ma}' be employed in any situa- 

 tion. 



TO TAKE IMPRESSIONS ON PAPER FROM 

 DESIGNS MADE ON STONE. 



The stone should be close grained, and 

 the drawing or writing should be made 

 with a pen dipped in ink formed of a so- 

 lution of lac, in k-ys of pure soda, to 

 which some soap and lamp-black should 

 be added for colouring. 



Leave it to harden for a few days; then 

 take impressions in the following manner: 

 dip the surface in water, then dab it with 

 the printer's ink and printer's balls: the 

 ink will stick to the design and not to the 

 stone; and the impressions may be taken 

 with wet paper, by a roller or screw press, 

 in the ordinary way ; several hundred 

 copies may be taken from the same design 

 in this simple manner. 



From the Retrospect of Philosophical, Mechanical, 

 and Agricultural Discoveries. 



ON THE BLIGHT IN WHEAT. 



By Mr. Thomas Davis of Harringsham, 

 (deceased). Bath Society^s Papers, 

 Vol. 11. 



Mr. Davis commences by observing, 

 that the opinion which he had formerly 

 given to the Society, that the bHght in 

 wheat was & plant, and not an insect, had 

 been since fully confirmed by the micros- 

 copical observations of Sir Joseph Banks, 

 who describes the manner in which the 

 minute seeds of this plant are carried by 

 the wind, and lodged on the growing 

 stalks of wheat, where they take root and 



vegetate, and like all parasitical plants, 

 rob the plant to which they attach, of all 

 its nourishment, to support themselves. 

 The efli'ecc is too well known: it absorbs 

 the farina or flower of the fairest and 

 plumpest grain, and reduces it to a mere 

 shell of bran. The remedy, however, he 

 adds, is not so easily found, and with all 

 due deference to Sir Joseph Banks, he 

 thinks it very doubtful whether the evil 

 can be eradicated b}' pulling up the dis- 

 eased plants, or even by burning up all 

 the straw of the blighted crop; for the 

 seeds of this destructive plant are too mi- 

 nute and abundant, and capable of being 

 wafted to too great a distance, to be totally 

 destroyed ; a single acre of blighted wheat 

 being sufficient to supply a whole district, 

 and botanists have admitted, that a blight 

 grows and flourishes on otlier plants be- 

 sides wheat. 



It is not therefore conceived to be with- 

 in the power of man, totally to prevent 

 the ravages of this destructive enemy to 

 agriculture, though it may be obviated in 

 a very considerable degree, by ascertain- 

 ing the cause, which peculiarly predispose 

 and prepare the wheat plant for its at- 

 tacks, and these are summed up in one 

 word, namely, tveak)iess. 



( 7b be continued.) 



From the same. 



ON THE DISEASES IN DOGS CALLED THE 



DISTEMPER. 



By a Kincardinshire Freeholder. — Far- 

 mer's Magazine, No. 35. 



As a iarmer generally values his dog 

 next to his wife and his horse, any apolo- 

 gy is held unnecessary for obtruding this, 

 paper upon an agricultural publication. Ifc 

 is noticed that the disease called the dis^- 

 temper, is more accurately described by 

 Dr. Blane than by any other writer, and' 

 that his medicines have proved more suc- 

 cessful than those of any other person y. 

 but they yet very often fail of producing a 

 cure, and the valuable animal dies a mis- 

 erable and lingering death.. The gentle- 

 man who communicated this paper to the 

 Magazine, had administered the do&tor's- 

 medicines to a favourite pointer, but with 

 no avail; the unvarying symptoms had 

 come on, when the poor animal crawled 

 into the field and fell among some grass,^ 

 attempting, but in vain, to eat it. He fol- 



