112 TRANSACTIONS OF THE AMERICAN INSTITUTE. 



July 22, 1861. 

 Dr. Trimble, of Newark, New Jersey, in the chair. 



OATS BONE MANURE. 



Mr. Carpenter exhibited specimens of Poland oats and black oats, 

 five feet and six inches in length, selected from patches in the 

 field. Last year a crop of corn, estimated at 60 bushels to the 

 acre, was taken from the field, 15 bushels of bones to the acre 

 having been applied. This year the same quantity of bones was 

 put on, with no other manure. He used the sawings and the fine 

 bone. He considered bone to be the best manure he could use 

 for the cereals. It has this advantage over guano, that if a large 

 quantity is applied, sufficient strength is imparted to the stalk to 

 hold it up ; whereas, upon applying 500 lbs. of guano to the acre 

 to wheat, the result was a great growth, but long before the 

 seeds formed, it fell and was a total loss. This field was seeded 

 down to grass, and the next year the effect of the guano was im- 

 perceptible. The second year the grass nearly failed in that 

 part of the field where this large amount of guano had been 

 applied, showing that it had stimulated the soil to such an extent 

 that it had exhausted it, and it became the poorest part of the lot. 



HOTZ'S PEDAL ENGINE. 



The committee appointed to examine Hotz's Pedal Engine beg 

 leave to report, that they deem it a valuable acquisition to the 

 man^'^ and improved implements of security and usefulness, to the 

 domestic household. The vacuum being as perfect as in other 

 implements for like purposes, it will take water from a well or 

 reservoir 30 feet below the surface, and by the action of a per- 

 son weighing 150 lbs., without any advantage of mechanical 

 force, throw it to an equal height, or 50 feet in a horizontal line ; 

 and pf course proportionally higher and further with greater 

 weight and facilities of mechanical force. The improved nozzle, 

 or pipe for sprinkling or showering, is the most perfect your com- 

 mittee have examined. It is susceptible of producing a mist, and 

 then by a simple turn of the wrist throw a solid stream ^^gths of 

 an inch in diameter. For watering gardens, putting out fire and 

 washing windows, your committee esteem it a cheap and valua- 

 ble invention. 



(Signed) N. H. GALE, 



I. P. TRIMBLE, 



New York City, July 22, 1861. EDW. DOUGHTY. 



The report was adopted. 



