284 



THE GENESEE FARMER. 



Dec. 



A STRAY LEAF FROM A MANTJSCIPT WORE: 



What chs ige takes place in a kernel of wheat or 

 it is about to put forth 



heat, air and moisture the starch 



j n the 'averted into sugar. The quantity 



rmed is often sufficient to make bread 



le taste when made of wheat which 



"little grown." 



Is starch an important substance in the economy of 



is. A ad its properties, and component parts 

 :arefully sti 

 How many simple elements enter into the compo- 

 of starch? Three. 



I H; /en. 

 Whaf are the proportions of carbon oxygen and 

 en in 100 lbs., of starch? 



Dr. Prout 100 parts of starch dried 

 . contain, ' 



41 per cent or 12 atoms. 



a. 5,2 •• •• 10 •■ 



Oxygen -49,8 " :i 1U " 



100 



In what respect does the composition of sugar dif- 

 fer from that of stan I 



and sugar are composed of the same simple 

 nts, and in the same proportions, and yet starch 

 it substances. 

 How is that? 



ere are many changes in the form and proper- 

 lies of mutter without any addition or diminution of 

 led. Water is a liquid 

 32°; but ci 

 and s ri cooled much below that 



point. /en — 



at one time solid 



■ and another a gas or air. — 



So, th d water, maybe 



atone .^iarch, and then 



■sat-. 



t plant is carbon and 

 water? 



mo 94 per cent. 

 What are itive proportions of oxygen and 



er? 



mixed with one of 



hydn et on fire, they will explode and con- 



.;' water. 



Suppose 10 gen be mixed with one 



of hydrogen and fired with an electric spark, what 



will ta 



ly 8 lbs. of th i will unite with the 



ing like commo i air above the artificial water. 

 general lav table? 



It is atributed to what is called the law of " Defi- 

 nite Proporl 



' you mean by the " law of definite 



proportion 



You wil see in the above table of the component 

 vh that while six an I 

 ■ cent of hydrogen make 10 atoms in the 

 compound substance called starch, 49.8 per cent, of 

 en make precisely the same number of atoms. 

 i explain tl 

 Thi | rt that, eight ou 



or pounds of <>\ . quivatent to one of hydro- 



gen. In other words one atom of oxygen is eight 



times heavier than one atom d 

 if we divide 49.8 — the proportion of oxygen in 

 starch — by 8, the product will be very nearly ii.2, or 

 the proportion of hydr 



If one is the proportional number of hydrogen and 

 eight the proportional number of oxygen, what is the 

 proportional number of carbon, which you 

 other constituent in starch, woody fibre, gum, oil 

 and sugar. 



is the proportional or equivalent number of 



How do you prove I 



If 6 ounces of carbon is burnt in 16 ounces of oxy- 

 gen — 2 proportionals — the carbr 

 combine and form 22 ounces of carbonic acid. All 

 chemical combinations are governed by the la 

 definite proportion; ot 



mon salt, nor other compound body would be trail 

 in character. 



the Holland Purchase of V.' 



• Vncieut Remains; 



- 



- 

 lution: and a history of Pioneer Settlements undt-r the an 

 of Holland Coinpanj r;— including ReminiM- 

 1S12: the oi 



o: Publiske ; 

 Thomas. &: Co. 1S49. 

 Thi: . I to our thanks for a . 



From:* 



torical narrative, of no little value to the 



. It hi ust prove 



- 

 - 



sing !' 

 ev, — and bo 

 Editors of t ; ; 



this Journal, that I 

 James Vick, Jr. — a . 



time to the business oft':! 



Tn 

 ral W -irtm number, but did not <■■ 



printer s h mds until the pages of that i 



;: — 



t 



able i' 

 with more re 

 which he ean n 



in a previous num ' : — 



. ; • — Will you 



211.] 

 • ■ 1 25 Cull : > 

 nee. Rklu Burritt.— Burdett, N. Y. 1 



