REPORT OF THE CHEMIST. 117 
2. The best five, as will be seen, grew almost entirely below the sur- 
face, the average of the five giving 89.35 per cent. below ground, as 
compared with the poorest five, the average of which gave 73.15 per 
cent. below ground. 
3. The smaller roots gave better results than the larger, since the first 
five samples averaged 1.32 pounds, while the poorest five averaged 2.50 
pounds each. 
PERUVIAN SWEET POTATOES. 
The following results were obtained in a partial examination of speci- 
mens of sweet-potatoes sent from the valley of the river Chira, Depart- 
ment of Piura, Peru, by 8. C. Montjoy, United States consul, Lambaye- 
que, Peru. 
From the letter received from Mr. Montjoy it appears that there are 
three well-known varieties of “‘Carmotes” or sweet-potatoes. 
1. Porto Viejo, said to be very large, very sweet, and very abundant. 
P 2. Boca Sagarto, not so large, but very much sweeter, and of better 
avor. 
3. Nifia, smaller, excellent flavor, and very sweet. , 
Upon examination of the specimens received, it was easy to distin- 
guish three varieties, as follows: 
A. Skin, dark red; flesh, deep pink. 
B. Skin, light pink; flesh, yellowish white. 
C. Skin and flesh, yellowish white. ; 
The average weight of the tubers was about 14 or 14 pounds. 
An examination of the juice from the different samples gave the fol- 
lowing results: 
Estimation. | A. | B. | C. 
Specific cravity juice ------ ennncoeennnn cone ance cenenn se --- nnn one a enee- | 1. 075 1. 068 1. 070 
ReniGenisaice Ox pressed..o-- oso sesces qcconascduaeen==ss==-scee—n ===> i 34. 61 37. 12 27. 67 
OMGONEsUAE HP IWICO. soso dana cmancec ses qaeasoscenaes~dna> eocse=-sen 11.01 9. 44 11. 01 
PEM Contin pariites il) (OCG. asa sada co weceaeeranm aman n nena ae me 6. 41 5. 61 4.31 
Per cent. sugar in soluble matter........2--.--------- ---0-- eeeneeeeeee- 63. 20 62. 72 71. 80 
ANALYSIS OF YAM. 
An analysis of the yam was made with the following results: 
Per cent. 
COW aLeE cacoae sos consasccelece sae aaa —= «cece 31.13 
Juice expressed, 46 per cent....< Sugar ...--..----- ----22 222s eee eee eee » 5.58 
OpherisOwdsessacces coco eae eweaaeeeesaes ee 
WV siti io ion See ete ee ee tele laren a Selene 20. 92 
nGniy o4 per Conn. a2. . ve aa5 Some Sater s55 seo soon See eee eran aac 3.75 
Other solids......--- ie i elt ta a 5 Bee 29,33 
100. 00 
The expressed juice upon standing from one to two hours deposited a 
large amount of starch, nearly 8 per cent. of the juice by volume. 
BEET-ROOT SIRUP. 
A specimen of beet-root sirup received from Mr. B. W. Payne, Corn- 
ing, N. Y., gave upon analysis the following results: 
Per cent. 
UE err eR a Sk ato cen ay ei arnilealm ara a wie eatoeapgeDeoo 
SS VGTVT ES) am SO Se es ge i al ie Ea ee pe ee at le ee RT 49. 00 
Teor oS te 2 Vie ey eg i EE SS og ee 
Rn FeTiP ke ee ode tte TEC 27 el ale dees adn 
