. Bulletin of the Essex Institute. Essex Institute; Natural history; genealogy. BULLETIN OF THE ESSEX! INSTITUTE. Vol. 3. Salem, Mass., February, 1871. No. 2. One Dollar a Year in Advance. 10 Cents a Single Copy. Regular Meeting, Monday, February 6, 1871. The President in the chair. Records of preceding meeting read. Mr. James H. Emerton read a paper on the Flying Spiders, illustrating his remarks by drawings on the black- board. Some spiders, he said, have a habit of rising into the atmosphere by the help of currents of air acting upon threads of cobweb attached to their bodies. The threads b
. Bulletin of the Essex Institute. Essex Institute; Natural history; genealogy. BULLETIN OF THE ESSEX! INSTITUTE. Vol. 3. Salem, Mass., February, 1871. No. 2. One Dollar a Year in Advance. 10 Cents a Single Copy. Regular Meeting, Monday, February 6, 1871. The President in the chair. Records of preceding meeting read. Mr. James H. Emerton read a paper on the Flying Spiders, illustrating his remarks by drawings on the black- board. Some spiders, he said, have a habit of rising into the atmosphere by the help of currents of air acting upon threads of cobweb attached to their bodies. The threads before rising are often tangled together, covering the grass and bushes, and floating in the air in large pieces. In Europe large flights of this web often take place, particularly in the fall of the g year. The web rises usually in the morn- ing, when the weather is clear and calm, and descends again in the afternoon, as the day becomes cooler. Travellers on the coast of South America have several times seen the rioting of their vessels covered with cob- webs, blown off from the shore. Mr. Darwin, in his journal of the voyage of the Beagle, gives an account of Essex Inst. Bulletin. hi 3. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Essex Institute. 1n. Salem, Mass. , Essex Institute
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