Apr. 1922] STUDIES in termite control 15 



the basement were carefully examined for possible cracks and throughout 

 the entire season a close watch was kept for any possible entry of termites 

 through the walls. In no case were they discovered. The areas on the first 

 floor where flooring was removed and replaced are indicated by the shaded 

 portion shown in Fig. 1. 



Meanwhile, and for a long time afterward, work was in progress outside 

 the hospital building to discover termites and to try to get rid of them. The 

 surroundings of the buUding are shown in F ig. 3. The shaded parts indicate 

 areas in which termites were found. It will be noted that there was a very 

 general, widespread and serious infestation. 



To right and left of the administration building there is an incline leading 

 up to the corridors that connect the pavilions with the administration build- 

 ing. (Fig. 3, A. A.). That part of these entrances which was near the 

 ground was found to be infested. The lower part, therefore, was removed 

 as far as the infestation had proceeded. A concrete foundation for the in- 

 cUne was built in each case. 



On the front of the administration building and on the front of both pa- 

 vilions there are porches (Fig. 3, B. B.). Beneath the floor of these porches 

 was lattice work, extending in some places to the ground. A considerable 

 part of this was infested. The lower part of the lattice was sawed off so 

 that there would be a clearance of 6 inches between the ground and any lattice. 



At the rear of the administration building, also, there is a porch and at 

 the rear of the corridor leading to the men's pavilion there is an outside 

 wooden stairway. Many termites were found in the neighborhood of this 

 rear porch and the stairway was badly tunneled. Termites had gained 

 access to the stairway through cracks in brick piers on which the posts sup- 

 porting the stairway were placed. Posts and infested parts of the stairway 

 were removed and the structure rendered termite-proof. 



In the front of the administration building a narrow board walk followed 

 the entrance driveway in a curving hne to the street. On lifting this board 

 walk many termites were found beneath. The entire board walk was re- 

 moved and destroyed. (Fig. 3, C.) 



Just north of the women's pavilion were three old apple trees (Fig. 3, D, D, 

 D). These appeared to be vigorous but had some hollows and some 

 dead wood within the trunks and larger limbs. They were discovered to be 

 thoroughly infested. All three trees were removed. The earth was dug away 

 from around the roots and these were pulled out and destroyed, along with 

 the rest of the trees. 



At the rear of the women's paviUon and located 60 feet from it was a low 

 mound of earth containing various bits of board. Termites were discovered 

 here and this material was burned. (Fig. 3, E.) 



At the rear of the administration building and about 70 feet away were 

 sets of posts supporting clothes-lines. Termites were discovered here, also. 

 These posts were removed and in their place new posts were set which had 

 been treated with creosote and which were now imbedded in cement piers 

 (Fig. 3, F.) 



Immediately adjacent to these posts is a structure open on one side, used 



