HORTICULTUKE. 247 



The evaporated product " will keep for an indefinite time and hear tran^sportation 

 to any part of the world at any s^eason." An analysis of air-dry evaporated 8weet 

 potato gave the following results: Moisture 3.42 per cent, crude ash 2.48 per cent, 

 crude protein 5.06 per cent, crude fat 0.80 per cent, crude filier 2.08 per cent, nitro- 

 gen-free extract 86.16 per cent. It Avas observed that all varieties showed losses from 

 rotting when stored from Novend)er vintil ^[arcli. 



Tobacco culture on tlie east coast of Sumatra, W. AVestek.man ( />»' InlxtkK- 

 ciilliuir op Sumaira'ii oostkiist. Aynsterihun: J. II. rle Buxfi/, IHOI, pp. .]')(), ph. .!n, fujx. 

 10, iiHij) /, d(jtm. 14)- — An extensive treatise on the culture of toVtacco on tlie east 

 coast of Sumatra, including a description of its jireparation for market, and a consid- 

 eration of lal)or, commerce, and other economic phases of the industry. 



Sumatra tobacco, H. Dentz {Suniatrd, TaJiuk. Amxtcnhttn \_1!)()1~\, ml. 7, pp. 70^ 

 AT). — Notes on the connuerce of Sumatra tobacico, with ratings of different com- 

 panies trailing in the product. 



Fertilizers for tobacco, P. Wagnek {Will. Deut. Landw. Gesell., 17 {1902), No. 14, 

 pj). S1S4). — Tlie subject of fertilizing soil in tobacco culture is considered and a 

 number of different methods to suit certain conditions are suggested. According to 

 the author tobacco should l)e grown on soil rich in potash, and fertilizing substances 

 containing chlorin should not be used. The dry substance of the leaves should not 

 contain more than 0.6 per cent of chlorin and not less than 6 per cent of j)otash. 



The soverane herbe; a history of tobacco, W. A. Penn {London: Grant Rkh- 

 (ifih; New York: E. P. JJutton d- Co., 1901, pp. 326, pds. 5). — A history of tobacco, 

 including its cultivation and manufacture, the making of pipes, the use of cigars and 

 c;igarettes, and statistics on the consumption of tobacco since its use has become 

 common. 



HORTICULTURE. 



Field experim.ents -with nitrate of soda on market garden crops, Y,. B. 



Voorhees {New Jersetj Stas. Bvl. 157, pp. 20, ph. 2). — The author made a study of 

 the effect of different cjuantities of nitrate of soda for carrots, cabbage, celery, toma- 

 toes, peppers, turnips, and sweet corn, and of the relative advantages of two and three 

 ajiplications. In all cases the plats were first liberally fertilized with acid })hosphate 

 and muriate of i)otash. The data as to the yields obtained with the different crops 

 are tabulated and the proportion of jirimes and culls shown in each instance. 



Carroh. — Applications of 300 and 400 lbs. per acre, respectively, of nitrate of soda 

 were ai5i)lied to carrots cultivated in different plats. With this crop the increased 

 yield obtained was only just about sufficient to pay for the increased cost of the fer- 

 tilizers used. This result was thought to be due to some untoward condition of 

 the season. 



Cahhage. — When 400 l])s. of nitrate of soda per acre, applied in three different appli- 

 cations, was used the gain in the total yield was 13,810 lbs. or 156 per cent. On the 

 other plats where only 300 lbs. of nitrate of soda was used, or only two applications 

 made, the increase while very large was in no case in excess of 100 per cent. The 

 average gain for all the plats by the use of nitrate of soda was 1,287 heads. When 400 

 lbs. of nitrate of soda per acre was used there was a gain of 1,450 heads, and when 300 

 lbs. was used there was a gain of 1,125 heads. The larger application resulted in the 

 more satisfactory yield, though the plants did not economically use the larger amounts 

 applied. When two applications were made there was a gain of 945 heads per acre; 

 when three were made there was a gain of 1,630 heads, thus making the increase 685 

 heads per acre due to the third application. The three applications were more 

 effective than the addition of 100 lbs. of nitrate of soda. The most profitable crop 



