246 Forestry Quarterly. 



Note on Some New and Other Species of Hymenoptera in the 

 Collection of the Zoological Branch of the Forest Research Insti- 

 tute, Dehra Dun. By P. Cameron. Indian Forest Records. 

 Vol. IV. Part II. 1913. Pp. 33. 



Note of Useful Exotics in Indian Forests (No. i Prosopis 

 juliflora). By R. S. Hole. Indian Forest Records. Vol. IV- 

 No. III. 1913. Pp. 28. 



Note on Alhizzia Lathamu. By R. S. Hole. Indian Forest 

 Records. Vol. IV. 1913. Pp- 6. 



Note on the Utilisation of Bamboo for the Manufacture of 

 Paper-pulp. By R. S. Pearson. Indian Forest Records. Vol. 

 IV. No. V. 1913. Pp. 121. 



Note on Ligno Protector as a Possible Means of Preventing 

 Timber from Splitting zvhile Seasoning. By R- S. Pearson. 

 Forest Bulletin No. 13. Imperial Forest Service, Calcutta, 

 India. 1913. Pp. 10. 



Experiments were made to ascertain the value of a patent 

 substance known as "Ligno Protector" which, it is claimed, pre- 

 vents timber from splitting. Ligno is a light brown plastic sub- 

 stance of the consistency of thick paint, and is applied in a fairly 

 heavy coating, about i/io inch thick, to both ends of the log. 

 The conclusions arrived at from these experiments which covered 

 2i years are as follows : 



(i) The seasoning process is without doubt very considerably 

 retarded, a very desirable circumstance. 



(2) Ligno Protector by no means absolutely prevents timber 

 from splitting, and, though effective in some cases, it is absolutely 

 incapable of protecting such species as Qucrcus incana from 

 doing so. 



(3) Before any definite opinion can be formed as to its com- 

 mercial value it will be necessary to give it a trial on a large 

 scale and under natural conditions. 



A Further Note on the Relative Strength of Natural and 

 Plantation Groivn Teak in Burma. By R. S. Pearson. Forestry 

 Bulletin No. 14, Imperial Forest Ser\ace- Calcutta, India. 1913. 

 Pp. 21. 



