34 



kill the zarza, guana, guayaba, and moreover marabu, with good 

 results. "We have been able to see plants treated in this way and 

 moreover we have heard of various cases in w'hio'h after several 

 months sprouting began. Dr. Aristides Agramonte on March 10, 

 1916, certified in the following form the studies of Sr. Cassi : 



I hereby certify that Sr. Emilio D. Cassi for many months has 

 been studying the application of bacterial organisms to the destruction 

 of certain injurious plants as marabu among others, with probabilities 

 of success. And for the information of whom it may concern I issue 

 this certificate. Dr. Aristides Agramonte, Professor of Bacteriology 

 and Experimental Pathology in the University of Havana, March 

 10th, 1916. 



As may be seen this certificate does not express in a definite 

 manner what organisms are employed, and definitely states only 

 that the results will probably be successful although there are 

 no results, as yet. 



.Sr. Pedro Puig, Secretary of the Provincial Administration 

 of Camagiiey, certifies to having been present at an experiment 

 mafde by the iSr. Cassi with the application of a liquid substance 

 to exterminate or kill the Marabu; having been able to observe 

 the satisfactoiriy result if there were used a proportion of the 

 liquid 1 to 5 or 1 to 10. 



In this certificate is seen a discrepancy that exists regarding 

 the proportions of the solution, since while in some cases there is 

 dissolved one part of the liquid in 5, and 1 in 10 in other cases, 

 and there are even those wiio recommend using the liquid pure. 



Sr. Diego Acosta, Official Paymaster of the Secretary of 

 Public Works in the District of Camagiiey, manifests- the fol- 

 lowing: 



I hereby certify that I have used the liquid that is sold by Sr. Emi- 

 lio Cassi and known by the name "Destroyer of Marabu", with the 

 following result: In a proportion of 20 bottles of water to one of 

 liquid the solution was put on the Marabu and around the trunk, and 

 in 15 days I had noticed that there had died 10% of the plants. Not 

 satisfied with this result, I prepared the liquid in a proportion of 1-10, 

 and carried out the treatment cutting the plant almost to the ground, 

 and slashing the stumps, applying immediately the solution, so that 

 all of the plant died, without, up to date (4 months afterward and 

 with plenty of rain) having any shoots appear. 



And at the request of the Sr. Emilio Cassi, for whatever use he 

 may consider it necessary, I write this certificate in Camagiiev. Nov. 

 6th, 1914. (S.) Diego Acosta. 



In the foregoing certificate is seen the excellent results of 

 the preparation that Sr. Cassi sells under the name "Destructor 

 of Marabu", and we have not been able to ascertain, nn to thp 



