LIBRARY. 67 



Engineer-in-Chief of the second class, and Professor of 

 Applied Zoology in the School of Forestry. 



And information in regard to methods of prosecuting 

 microscopic investigations, so necessary in the study of ento- 

 mology, in relation to injuries done to forests by insects, is 

 embodied in a volume printed by Royal order, under the title 

 La, Estacion Zoologica de Napoles, y sus procedimientos, para el 

 examen Microsopico, The zoological station at Naples, and its 

 proceedings by microscopic examinations a memoir 

 presented to the illustrious the Director-General of 

 Agriculture, Industry, and Commerce, by Don Joaquin 

 Maria de Castellarnau y de Lleopart, Forest Engineer. 



Illustrations of the practical application of a knowledge 

 of entomology, to the study of damage done to forests by 

 insects, are supplied by a memoir entitled, Estudia de la 

 Invasion de los Monies de la Provincia de Salamanca, del Insect 

 llamado vulgarmente Lagarta. y medios mas adeocuardos, para 

 evitar sus estragos A Study of the Invasions of the Forests 

 of the Province of Salamanca, by the insect popularly called 

 Lagarta; and the most efficient means of averting its 

 ravages by Don Antonio Garci Maceira, Forest Engineer- 

 in-Chief ot the second class. 



In consequence of great devastation being occasioned in 

 the forests of Salamanca by an insect, the increase and 

 spread of which was imperilling the existence of the woods 

 and forests in the province, by Royal order of 2 1st May, 

 1883, a commission of enquiry was appointed ; and Senor 

 Maceira was entrusted with the commission. He proceeded 

 to the province, prepared a report, which was submitted 

 for examination to the Facultative Junta, or Professional 

 Council of Forests, by whom it was highly approved, and 

 its publication for general information was advised. This 

 approval and advice were forwarded by the Director- 

 General of Agriculture, Industry, and Commerce, to the 

 Minister of Fomento, and publication followed. 



In the memoir by Senor Maceira there is given the 

 history of the invasion and its rapid spread ; there follow 



