Make any other adjustments necessary. Replace cyanide in killing jar every three weeks, or oftener if any live insects are found in collection boxes. Reset time switch. Make complete notes concerning any unusual circumstances or conditions so the information will be available to the laboratory man when the collection is being identified. Include for checking purposes a list of the dates for which collections are included.
Columns are wide for normally predominating species.
Wide space for every fifth day aids in following lines and placing figures in proper location. A key to miscellaneous species. There are several factors in addition to location that may considerately affect the catching rate of a trip. In general, any cause of greater activity of the mosquito is apt to result in increased catches. Hence high temperature are likely to mean large catches, but few mosquitoes are taken below temperatures of 60 degrees F., when there is little mosquito activity.