"We have been watching you in order to avoid any unwelcome inquiries by the police. But if you continue we can accept no further responsibility," he said. "You see, you pose as Dutch without being able to speak a word of the language!"

After that Rasputin became more discreet, but I was nevertheless glad when one night we met Professor Hoheisel at the station and left for Hamburg, duly arriving at Stockholm two days later, where we lost no time in visiting the premises of Juel and Ehrensvard.

Indeed, Mr. Juel, the head of the Hun firm which was doing a large export business between Sweden and Germany, called upon us at the Grand Hotel within an hour of our arrival, and together we all went to a narrow street off the Fjellgatan, not far from the Saltsjöbanans station, where we found a great warehouse filled to overflowing with tins of corned beef and cases containing bottles of beef extract, which had come from America, destined for Germany, but which had been held up to be diverted to Russia after being treated with disease germs.

We were shown stacks upon stacks of tins of one pound, two pounds and six pounds of beef, all bearing a well-known label, but all painted a peculiar blue for identification purposes. In the store we were met by four German laboratory assistants of the fat professor, ready to commence work upon the tins.

"I will show you what we shall do," said Hoheisel. "The manipulation of the tins is quite easy."

He conducted us to a small room on the top floor, which I at once saw was fitted as a laboratory, and which contained microscopes, incubators, stands of test-tubes, and all the other apparatus appertaining to the bacteriologist.

One of his assistants had carried up four small tins of beef, with a couple of bottles of beef extract. These he placed on the table, and as we stood around he took a small bradawl, and having punctured the tin at the large end close to the rim, he took from one of the incubators a test-tube full of a cloudy brown liquid gelatine. Then filling a hypodermic syringe—upon which was an extra long needle—he thrust it into the contents of the tin and injected the virus into the meat.

Afterwards, with a small soldering-iron he closed the puncture.

"That tin, infected as it is, is sufficient to cause an epidemic which might result in thousands of deaths," declared the Hun professor proudly.

His assistant then took a bottle of beef extract, which in Russia is popular with all classes in preparing their cabbage soup, and refilling the syringe, plunged the needle through the cork, afterwards placing a spot of melted resin upon the puncture.