27 



Vat and dripping floor Continued. 



21 feet 2" wrought-iron pipe, with couplings. 

 1 elbow, 2". 



1 flange for securing pipe to bottom of tank, 2 X/ . 

 1 gate valve, 2". 



Gate and fence. 



8 pairs eye-and-bolt hinges, heavy, $" * 3" x 36". 



8 hasps, Ji 16" x 3", with bolt staple, for 8" posta 

 48 bolts, \" * 3". 

 20 " \ 4J 

 68 '" i 6 

 160 " I 4 

 32 driftbolts, \ x 12". 

 20 Iba. 30d. common wire nails. 

 65 " 40 " " " 



16 gals, coal tar. 



NOTE. If catch and holding pen is to be floored, add to the above 30 Iba. of 30d. 

 wire nails and 5 gallons coal tar. 



A SMALLER OR MEDIUM-SIZED PLANT WITH SWIMMING TANK." 



Doctor Melvin's immediate association with the work of dipping 

 cattle, both for marine and Texas fever, through his personal super- 

 vision of the erection of plants and their use in various sections of the 

 country, suggested to him the advantages in many localities of a 

 smaller swimming tank than the preceding (see figs. 14 and 15), such 

 as he has found to be serviceable and economical in dipping with 

 either crude Beaumont petroleum (see paragraphs 5, 6, and 7 of 

 Bureau of Animal Industry, Order No. 121 b ) or lime-and-sulphur dip, 



a Supplied by Dr. A. D. Melvin, Assistant Chief, Bureau of Animal Industry. 



& Bureau of Animal Industry, Order No. 121, paragraphs 5, 6, and 7. 5. Notice is 

 hereby given that cattle infested with the Boophilus annulaim, or southern cattle 

 tick, disseminate the contagion of splenetic, southern, or Texas, fever; therefore, 

 cattle originating outside of the district described by this order or amendments 

 thereof, and which are infested with the Boophilus annulatus ticks, shall be consid- 

 ered as infectious cattle and shall be subject to the rules and regulations governing 

 the movement of southern cattle. 



6. Stock-yard companies receiving cattle infested with said ticks shall place such 

 cattle in the pens set aside for the use of Southern cattle; and transportation com- 

 panies are required to clean and disinfect all cars and boats which have contained 

 the same, according to the requirements of this Department. 



7. Cattle in said district may be shipped after having been properly dipped in 

 Beaumont crude petroleum, under the supervision of an inspector of the Bureau of 

 Animal Industry, without further restriction, excepting such as may be enforced by 

 local authorities at point of destination, provided that application be first made to 

 this Department, and permission granted to establish dipping stations, and that after 

 being dipped the cattle are examined and certified by art inspector of the Bureau of 

 Animal Industry; and further provided that the cattle when dipped be shipped in 

 clean cara and not driven through the infected district or unloaded therein, except 

 at such point as may be duly designated in regulations of this Department. - 



162 



