70 JOURNAL OF THE [April, 



on the Isthmus I recommended the substitution of more durable 

 woods than the ordinary ones from this section, a dry-house to 

 prepare the lumber for the coaches and cars, and the treatment 

 of some portions of the frame-work of the coaches. These sug- 

 gestions were carried out at once, resulting in a benefit as far as 

 the application extended. It is quite necessary to treat the 

 wood so that the interior is well protected, or external treatment 

 will be of little avail against fungi and Termites.* 



* Since reading the above paper, Dr. Hagen, the Authority on Termites, has iden- 

 tified four species, from the Isthmus. Others of the species are new and unknown. 



