The invention relates to laboratory equipment used in the manufacture of thin sections of histological or biological samples for subsequent microscopic examination, and can be used in medical and biological laboratories specializing in histological and cytological studies. Device for cooling paraffin blocks with histological or biological samples includes a refrigerator, an external cooling unit in a cooling platform with a built inside the coil for passing a liquid coolant from the refrigerator and the cooling system of the microtome specimen holder. Serpentine cooling unit is connected directly to the sample holder cooling system formed in a channel shape inside the sample holder tubes placed inside a microtome. This achieves simplification of the device and release of the working zone microtome. 1 n. F-ly, 4 FIG.
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