6& FORESTRY IN SPAIN. 



which it contains, and from its qualities, physical, chemical, 

 and mechanical, the requirements which should be satisfied, 

 and the relations which, within definite limits, should exist 

 between the soil and vegetation which it prefers that in 

 this part of the work the forest engineer has a safe guide 

 in the discharge of one of the most important of the 

 services required of him. They allege that Senor Munnos 

 has (it may be unintentionally, but not on that account the 

 less meritoriously) so carried out his idea as to elevate it to a 

 place amongst those ideas which are of much avail in the 

 development of the practical applications made of physical 

 science; showing that appliances which are oftimes found 

 to be a burden on the memory appear as corollaries or 

 consequences like to those which are derived from mathe- 

 matical problems, and satisfying suspicions and doubts 

 which naturally arise as the horizon is extended, by the 

 demonstration that what happens could not but happen, 

 and could not have been brought about otherwise. 



Sub-Section 2. Applied Zoology. 



Like attention has been given to provision for the study 

 of Zoology and Botany in their application to forestry. An 

 extensive acquaintance with both sciences is a pre-requisite 

 to admission to the school in the Escurial, but the 

 information otherwise obtained has to be brought to bear 

 upon phenomena presenting themselves to the forest 

 engineer in the discharge of his functions, so as to secure 

 the conservation and healthful development of forests 

 under his charge or administration. 



What may be considered a handbook, which may be 

 used in diagnosing vegetables and animals coming under 

 his notice in connection with his profession, as might be 

 used the Petrography of Munnos in diagnosing rocks and 

 soils, is a volume entitled Claves Dicotomicos, para la deter- 

 minacion de los typos, ordenes y Familias, en los reinos, animal y 

 Vegetal, by Senor D. Adolfo Parada y Barreto, Forest 



