138 Amber, 6 Months. } Latitude of 143 Light brown, 8 Months. } musts which 148 Brown, 10 Months. } fine by precipitation. 152 High brown, 12 Months. } 157 { Brown, inclining to } 14 Months. } Latitude of { black, } } heats which } cannot form 162 { High brown speckled } 16 Months. } musts, so as { with black, } to answer } the intent 167 { Half brown half 18 Months. } of becoming { black, } wholesome 171 Coffee color, } 20 Months. } beer. 176 Black, } } The difference between the heat for forming grapes, and the greatest heat which ripened them, affords to us the number of degrees answerable to their constituent parts: the investigation of barley, in like manner, though less important to our purpose, yet may, with some propriety, be admitted. Upon examination it will be found, barley ears, and the new grain begins to form (being still in possession of its flower) about the same time with us as grapes do, in June; when we found the mean heat of the air in the shade to be 57.60 degrees. Barleys in general are mowed from August to September; so that, in their growth, they are benefited by the whole of our summer’s heat, and for like reasons as in page 59, we estimate this 61.10 degrees: 3.50 degrees then would be the number of their constituent parts, taken from the degrees of heat in the shade, and which perhaps would be different if the actual sun-shine heat and what is reflected from the earth, were accounted for. Barleys are annuals, unbenefited by the whole of the autumn sun; but, after being mowed, they are stacked, retaining still much of their straw, leaves, and outward skins. In these heaps they heat, more or less, according to the condition in which they were housed; and which heat may reach to 120 degrees or more, but in general is equal, or somewhat superior, to that of our bodies. The properties of the grain, by this means improved, ripen, and from hence are more capable of preserving themselves. This might be a reason why a farther allowance should be made to the number of degrees denoting their constituent parts: how much, by a very great number of observations, made from the germination, ripening, to the stacking of the barley, in many years, and in many cases, might probably be ascertained; but the difficulty of doing this, and afterwards the impossibility of complying with the information such enquiries would afford, and the little need there is for it, as nature has allowed a considerable latitude for our deviating from what may be styled perfection, without any sensible injury: these circumstances render such enquiries unnecessary, if not fruitless.