A cathode-ray oscillograph and special camera were used to record instantaneous values of the current for the dropping-mercury electrode. The results show that the Ilkovic equation does not represent the current as a function of time. The relation between the average current during the life of a drop and that measured by several polarographic circuits was determined.

T he influen ce of maxim a suppressors on the pola rogra phic diffusion current ha s been reillvestigated. Abnormally la rge values for the diffusion current a re foun d i n t he a bse nce of supp ressor . The amou nt required to suppress maxima is less for large electrodes a t lon ger drop-times. The depressive .action of la rge excesses of s up pre ss~r also has been st udied. Agar is shown to be an effective suppressor of maxi ma a nd a suffi Cle nt amo un t can dissol ve in a short. period of t ime, wh~n ~si ng H-?ells containin g agar .plugs! to c~)\npl etel y s upp ress maxima . As a result, quantItative studies of suppresso r a ctlOn with t hiS type of cell are of doubtful signifi cance.

Subcutaneous Sweet's syndrome (SS) is a rare variant of classic SS characterized by a neutrophilic infiltrate exclusively or predominantly in the subcutaneous tissue, with minimal or absent dermal involvement. We report the case of a patient with a history of chronic myelogenous leukemia who developed subcutaneous SS. Although it has been described in patients with myelodysplastic syndromes and acute myeloid leukemia, this is the first report, to our knowledge, of this rare entity occurring in the setting of a myeloproliferative disorder.

We report the case of a 78-year-old man who developed a breast mass 12 months after hormonal therapy for palliation of prostatic adenocarcinoma. On histologic and immunohistochemical examination, the breast tumor revealed a unique collision tumor composed of metastatic prostatic adenocarcinoma and solid papillary breast carcinoma.