The Dodabetta site, being four or five degrees warmer than Ootacamund, throughout the year, has a temperature, on the whole, somewhat warmer than the lofty regions where the species of chinchona grow, for the cultivation of which this position was selected. The elevation above the sea exactly corresponds, and the amount of humidity is about the same. The ravine is full of fine trees, with a variety of exposures, the general aspect being north-west; a clear little stream flows through it; and, in most parts, the soil consists of a rich loam four or five feet deep. Outside the wooded ravine there are tree Rhododendrons, Berberis, Gaultherias, lilies, Lycopodia, and brake-ferns, scattered about on the grassy slopes; and the character of the scenery and vegetation very closely resembles that of the _pajonal_ country between the valleys of Sandia and Tambopata in Caravaya, where the shrub _Calisaya_ flourishes. The site is protected by rising grounds from the cold northerly winds, and the colder breezes blowing over it from ridge to ridge prevent the warm air in the ravine from rising, so that the temperature became warmer as we ascended through the wood, and in the highest part there were orchids and pepper-vines hanging on the trees. [Illustration: Observations by T. G. TAYLOR, and by Capt. OUCHTERLONY.] The analogy between the flora of the Dodabetta ravine and of the loftier parts of the chinchona region was another point which influenced my decision. Within the ravine there are nine species of chinchonaceous plants, namely-- _Hedyotis Lawsoniæ._ _Hedyotis stylosa._ _Lasianthus venulosus._ _Coffea alpestris._ _Coffea grumelioides._ _Canthium umbellatum._ _Grumilea elongata._ _Grumilea congesta._ _Psychotria bisulcata._ These are mostly ornamental pretty shrubs, from six to eight feet high, with clusters of white or cream-coloured flowers. The other genera of which the wood is composed are as follows:--_Vaccinium_, _Myrsine_, _Symplocos_, _Ilex_, _Michelia_, _Sapota_, _Isonandra_, and _Cinnamon_ among the trees; _Eugenia_, _Myrtus_, _Jasminum_, _Osbeckia_, _Sonerila_, _Solanum_, _Viburnum_, and _Acanthus_ among shrubs; _Lonicera_, _Passiflora_, _Rubia_, and _pepper-vines_ among the climbers; with an undergrowth of _Lobelia_, _Begonia_, _Convolvulus_, orchids, and ferns. The _Osbeckias_ and _Sonerilas_ represent the melastomaceous plants, the constant companions of chinchonæ in South America.