A glance at the vegetation of this district will suffice to show how little there is that betokens either a warm or dry winter climate; for here the myrtles, oranges and olives are left far behind, and in their place we see tall hedgerow elms, and poplars bearing mistletoe on their branches. Here therefore we are met by the question, How do these Bordeaux spiders contrive to live under conditions so different from those to which their relations on the Riviera have adapted themselves? How do they bear the cold and damp of the long winter, and how is it that one frail upper door suffices to protect their nest from molestation? The thick coating of dead leaves, which covered the banks even when we found them, no doubt aids largely in their concealment, and the colder climate probably diminishes the number of their enemies, but their means of subsistence are most likely also less abundant and their period of active life shorter. The next type we have to consider is a totally new one, and may be distinguished as the _single-door branched wafer nest_. I detected this nest at Montpellier but a few days before the visit to Bordeaux alluded to above. Circumstances unfortunately prevented me from following up my discovery as closely as I could have wished, and it appears moreover that this nest is far less common at Montpellier than the typical cork nest (_Nemesia cæmentaria_). [Illustration: _Plate XVII._] I hope therefore that other naturalists will make further investigations, and especially that they will endeavour to secure the male. I obtained twelve spiders and thoroughly followed the course of ten nests; I opened thirteen more nests, but failed to trace their structure satisfactorily. The upper part of this nest is shown of the natural size in Plate XVII. with the spider (_Nemesia suffusa_, Camb.[140]) which constructs it. This is again a wafer nest without any lower door, and this absence of a lower door alone distinguishes it as a type from the branched nest represented at F in the diagram, just as the same deficiency separated the Bordeaux type from that at fig. E. [Footnote 140: We have again in this instance an exemplification of the rule that a new type of nest indicates the presence of a new spider, and hitherto, this rule has proved without exception. Mr. Pickard-Cambridge's description of _N. suffusa_ will be found at p. 295, below. Its slender proportions, cylindrico-ovate abdomen, marked with narrow linear chevrons, and caput without, or almost without, any median line or marking, form some of its more striking characteristics.]