HEARINGS BEFORE COMMITTEE ON AGRICULTURE. 261 
Mr. Scorr. Last year did you do anything in addition to what this 
$10,000 enabled you to do? 
Mr. Wirry. Yes; we supplied a good deal in addition to the $10,000 
from our general fund. 
The Cuarrman, Is it a separate laboratory? 
Mr. Winey. Yes. Itis one laboratory in the Bureau of Chemistry, 
one of our laboratories. They all have different lines of work, but 
they all use the general stores under a common direction. 
Mr. Henry. The materials are sent from all over the country ? 
Mr. Wirry. Yes; costing us nothing. 
Mr. Henry. How large a quantity of stone do you require? 
Mr. Winey. About 25 pounds, or the same weight of clay or anv 
other material. 
Mr. Henry. Have you analyzed trap rock? 
Mr. Winey. Yes, sir; we are preparing a bulletin on that now. 
Mr. Henry. There is quite a difference in that—— 
Mr. Wizey. A most wonderful difference in their character. 
The Cuatrman. How long have you been going on with this? 
Mr. Wirey. We are beginning on our third year. 
The Cuatrman. Are you not beginning to come to the end of your 
work on that? 
Mr. Wizey. No; we are just beginning. 
The CHarrMAN. I mean in regard to road material. 
Mr. Witey. No; as long as roads are built you will need these 
investigations. 
The Cuatrman. I do not suppose. you could tell us whether Mr. 
Dodge would agree to have this amount deducted? 
F Mr. Witey. I do not think he would object if he gets all he asks 
or. 
The Cuarrman. If he gets that of course he will not object. 
Mr. Witry. We do not want to detract anything from his work; 
we do not want that injured in any way, but we would like to have 
this made independent. I recommended it last year, but the Secre- 
ee did not see fit to urge it, but this year he has thought it wise to 
0 So. 
Mr. Scorr. If it is a mere transfer of funds I do not see why there 
should he any objection to changing it. 
Mr. Witry. Up to this time it has been a transfer of funds. 
Mr. Lams. What suggestions do you make as to road materials in 
sandy and wet countries? Take the Atlantic coast from here down to 
Florida. 
Mr. Wtrey. I will tell you what we are doing in that respect, Mr. 
Lamb. Weare studying the properties of clay which we can mix 
with sand and make a road of, and we have made some interesting dis- 
coveries. We believe we can treat an ordinary clay by a certain 
degree of heat and make a cement with sand. If that can be done it 
will be the solution of the road problem in that kind of country. 
Mr. Roper. Have you had any materials sent you from the West? 
Mr. Witey. Yes, from all over the country. 
Mr. Burteson. Will it hold water? 
Mr. Wiey. It will turn water. 
Mr. Burteson. If so, why not line these irrigation ditches with it? 
Mr. Wuitey. I do not know how it would be in a running stream, 
but we can destroy its plastic properties. , 
