[M. de la Gironniere.] Although the south-west monsoons generally occur later in Jalajala than in Manila, it was already raining so hard that I decided to go to Calauan, on the southern shore of the lake, which is protected by Mount Makiling, and does not experience the effect of the rainy monsoons till later in the season.  I met M. de la Gironniere in Calauan, the “gentilhomme Breton” who is so well known for telling the most terrible adventures.  He had lately returned from Europe to establish a large sugar manufactory.  His enterprise, however, was a failure.  The house of the lively old gentleman, whose eccentricity had led him to adopt the dress and the frugal habits of the natives, was neither clean or well kept, although he had a couple of friends to assist him in the business, a Scotchman, and a young Frenchman who had lived in the most refined Parisian society.

[Llanura de Imuc.] There were several small lakes and a few empty volcanic basins on the estate.  To the south-west, not very far from the house, and to the left of the road leading to San Pablo, lies the Llanura de Imuc, a valley of dolerite more than a hundred feet deep.  Large blocks of basalt enable one to climb down into the valley, the bottom of which is covered with dense growths.  The center of the basin is occupied by a neglected coffee plantation laid out by a former proprietor.  The density of the vegetation prevented my taking more precise observations.  There is another shallower volcanic crater to the north of it.  Its soil was marshy and covered with cane and grass, but even in the rainy season it does not collect sufficient water to turn it into a lake.  It might, therefore, be easily drained and cultivated.  To the south-west of this basin, and to the right of the road to San Pablo, lies the [Tigui-mere.] Tigui-mere.  From a plain of whitish-grey soil, covered with concentric shells as large as a nut, rises a circular embankment with gently-sloping sides, intersected only by a small cleft which serves as an entrance, and which shows, on its edges denuded of vegetation, the loose rapilli of which the embankment is formed.  The sides of this natural amphitheatre tower more than a hundred feet above its flat base.  A path runs east and west right through the center.  The northern half is studded with cocopalm trees and cultivated plants; the southern portion is full of water nearly covered with green weeds and slime.  The ground consists of black rapilli.

[Leaf imprints in lava.] From the Tigui-mere I returned to the hacienda a bank formed of volcanic lava two feet in thickness and covered with indistinct impressions of leaves.  Their state of preservation did not allow me to distinguish their species, but they certainly belonged to some tropical genus, and are, according to Professor A. Braun, of the same kind as those now growing there.

There are two more small lakes half a league to the south-east.  The road leading to them is composed of volcanic remains which cover the soil, and large blocks of lava lie in the bed of the stream.