The advances in diagnostic veterinary medicine are developing at an ever increasing rate. As new techniques are put into use, there are difficulties in informing the general practitioner of these procedures. This paper was compiled to aid you, the practitioner, in submitting specimens to the ISU Veterinary Diagnostic Laboratory. This section is centered in this issue so that removal is possible. In this listing, each disease will have comments on the specimen(s) to submit, the preservation of that specimen, and the procedures that will be performed by the laboratory.