466 



BOAED OF AGRICULTUEE. 



Salt Mud. 



[Sent on by L. B. Goodwin, So. Duxbary, Mass.] 

 [T. Sample taken from a dock dug in a salt marsh. The sender states that large 

 quantities of kelp have been unloaded at this dock, and a good deal of eel-grass is 

 also deposited.] 



[II. Taken from the flats at Jow-water mark.] 



II. 



Moisture at 100° C, . 

 Ash constituents, . 

 Insoluble in acids, 

 Nitrogen in organic matter, 



C0.37 



33.09 



26.20 



.40 



Soluble constituents contained : 



Black Mud, 



[III. From the flats near Weymouth, Mass. Sent on by Thomas A. 



Watson, Esq.] 



Moisture at 100° C, . 

 Ash constituents. 

 Insoluble in acids, . 

 Nitrogen in organic matter. 



56,55 



3G.60 



3184 



.30 



Soluble constituents contained : — 



Sesquioxide of iron. 

 Calcium oxide, . 

 Magnesium oxide, 

 Potassium oxide, 

 Sodium oxide, . 

 Phosphoric acid, 



4.26 

 .91 

 .66 

 .38 

 .86 

 traces. 



