392 PROCEEDINGS OF THE CHEMICAL DEPARTMENT. 



The plots should be arranged in this manner. 



If these experiments be made in conjunction with the 1st 

 {Series, the nothing plots marked with an asterisk may be sup- 

 pressed, as the end nothing plot of the 1st Series may then 

 serve for both. 



8. The manures are sent out in small sacks, each of which 

 contains the quantity required for a single plot. To the mouth 

 of each sack is attached a round metal label with two numbers 

 upon it ; the upper refers to the Series of Experiments, the 

 lower to the number of the plot as given above ; and as the 

 plots are all in duplicate, there are in every case two sacks with 

 the same number. 



9. Arrange the bags in the order of the plots. 



10. Have ready several large stoneware basins (milk basins 

 will answer). Empty the manure out of one of the bags into a 

 basin, add to it some sand or loam slightly damped, and mix 

 the two carefully with the hand, turning them over several 

 times so as to get them uniformly mixed. From the nature of 

 the manures it will be found that there are great differences in 

 the bulks, and for this reason the quantity of sand used must 

 be so adjusted as to bring all to the same bulk in order to secure 

 accuracv in sowing. No. 4 of the 1st Series and No. 2 of the 

 2nd Series will be found to be the largest in each case, and 

 should these be sufficiently bulky they may be used without 

 sand, and the others brought up to the same bulk by adding as 

 much as may be necessary for this purpose. 



11. Carefully preserve the whole of the bags and return 

 them at your convenience to 15, Shuttle Street. 



12. Two pounds of Aberdeen Yellow Turnip Seed are sent 

 with each lot of manure, being a quantity sufficient to sow § of 

 an acre. 



13. It is advisable that each experimenter should keep a 

 small note book, in which to record the date of sowing, braird- 

 ing, thinning, &c, and any other facts worthy of notice. Among 

 these the days on which rain falls, and an approximate estimate 

 of the number of hours it continues, are important. 



