64 FORESTRY IN SPAIN. 



SECTION 3. STUDIES OF THIRD YEAR. 



In the third year of study attention is given to Mineral- 

 ogy and Applied Geology; to Applied Zoology; to 

 Applied Botany ; and to Sylviculture. 



Sub-Section j.. Mineralogy and Geology. 



Besides other works on geology and mineralogy, there 

 lias been published under the title of Lecciones de Petro- 

 raphia Aplicada Ewplicada en le Escuela Especial de 

 Ingenicros de Monies por el Ingeniero del Cuerpo y Pro- 

 fessor de la misma D., Juan Jose Munnos de Madariago, 

 Lectures on Applied Petrography expounded in the School 

 of Forest Engineers by Senor Munnos, Forest Engineer and 

 Professor of Mineralogy in the school. In this are given 

 details in regard to some GOO different rocks, including the 

 scientific and the popular names under which they are 

 known, and is a work spoken of in terms of high com- 

 mendation by the Junta Consultative or Council of Advice, 

 of the corps, by which the publication was recommended. 



In this volume, after some preliminary observations, 

 notices of the bibliography of the subject, and a definition 

 of the designation, there are discussed : 



1 Under the head of Hilolgy the division of rocks 

 according to their constitution, with the distinction 

 between phaneromeric and cryptomeric rocks. 



2. Under the head of Histology there are discussed the 

 forms and dimensions of the elements of rocks ; the forms 

 and structure of accessory masses ; the general forms of 

 structure ; particular structures of rocks ; cross sections 

 and fractures. 



3. Under the head of Morphology are discussed forms 

 of stratification, of aggregation, and of concretion. 



4. Under the head of Synopsis there are given the 

 classification of Naumann, with a tabulated classification 

 of the rocks according to this ; the classification 

 of rocks, according to Cordier ; the classification of rocks 



