378 



a truss representing an average half or quarter of a cubic yard, 

 weigh it, and from that calculate the total weight. Australasian 

 Farmer. 



MAKING HOP BEER. The following is a recipe for 10 gallons 

 hop beer : 10 Ibs. sugar, 10 gallons water, 4 ozs. hops, a pinch of 

 isinglass, a few rasins, two large bottles of porter, or a pint of yeast i 

 take four gallons of water and boil it with the sugar and hops for 

 one hour, then strain into a tub and put the hops on again in a little 

 more water, and boil for half an hour ; then strain into the tub, and 

 then into a cask with a piece of muslin over the funnel to prevent 

 the seeds going through ; then iill up with cold water, which will 

 make the 10 gallons. It must be filled up every morning for four 

 days with cold water ; and the day before bottling a pinch of isin- 

 glass dissolved in a little of the beer warmed is a great improvement 

 to clear it. Of course you put the yeast or porter in after you fill 

 the cask ; then, also, add the rasins. If bottled on the fifth day it is 

 nearly ready for drinkirg. Australasian Fanner. 



MENSURATION AND LEVELLING. Computation of acreage. 

 Divide the enclosure into convenient triangles ; multiply the base 

 (in links) of each triangle by its perpendicular height, and divide by 

 two : this gives area in square links ; point off live figures to the 

 right (= dividing by 100,000, the number of square links in an acre), 

 which gives acres and decimal fraction. Repeat the process for 

 each triangle, and add together. Multiply decimal fraction by four, 

 point off five figures, leaves roods ; multiply fraction left by 40, point 

 off five figures, leaves poles with decimal fraction. To set off a right 

 angle with a chain only. Measure off 40 links on the ground along 

 the base-line ; then take 30 for the perpendicular, and 50 for the 

 hypothenuse ; by fastening the extremities of these last 80 links at 

 the ends of the base, and pulling the chain tight, we have a right- 

 angle triangle. 



E m (JTJ D 



INACCESSIBLE POINTS. (i). Start from A (exactly opposite to E) 

 and go to B ; continue to C, making B C = A B ; erect C D perpen- 

 dicular to A C, and find D in a line with B and E : C D = A E. 



(2). Take B A at right angles to C D ; draw A C perpendicular 

 to A D ; then AB:BD::CD:BA. 



